{"title":"Big-Bore-Kits","description":"\u003cp\u003eBig-Bore-Kits: Entdecke unser Sortiment bei Motorcycles United.\u003c\/p\u003e","products":[{"product_id":"replacement-cylinder-900cc-sportster-front","title":"Replacement cylinder 900cc Sportster, front","description":"Black painted stock replacement cast iron cylinder. Stock 3\" bore. Repl. 16464-58A. \r\n\r\nNote: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884249104761,"sku":"600-0106","price":182.91,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/500618k.jpg?v=1783164326"},{"product_id":"replacement-cylinder-900cc-sportster-rear","title":"Replacement cylinder 900cc Sportster, rear","description":"Black painted stock replacement cast iron cylinder. Stock 3\" bore. Repl. 16465-58A. \r\n\r\nNote: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884249170297,"sku":"600-0107","price":201.18,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/500620k.jpg?v=1783164327"},{"product_id":"replacement-cylinder-1000cc-sportster-front","title":"Replacement cylinder 1000cc Sportster, front","description":"Black painted stock replacement cast iron cylinder. Stock 3-3\/16\" bore. Repl. 16464-73C. \r\n\r\nNote: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884249203065,"sku":"600-0108","price":290.31,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/500620k_68d90566-0fb7-4169-8d71-ba2748fa76b7.jpg?v=1783164327"},{"product_id":"replacement-cylinder-1000cc-sportster-rear","title":"Replacement cylinder 1000cc Sportster, rear","description":"Black painted stock replacement cast iron cylinder. Stock 3-3\/16\" bore. Repl. 16465-73C. \r\n\r\nNote: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884249235833,"sku":"600-0109","price":302.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/500625k.jpg?v=1783164357"},{"product_id":"replacement-xl1000-cast-piston-060","title":"Replacement XL1000 cast piston. +.060\"","description":"Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. \r\n\r\nNote: Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884279021945,"sku":"600-0394","price":52.57,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/504360k.jpg?v=1783164393"},{"product_id":"replacement-xl1000-cast-piston-std","title":"Replacement XL1000 cast piston. std","description":"Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. \r\n\r\nNote: Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884279054713,"sku":"600-0395","price":52.57,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/504360k_851a0331-1e44-46ea-b9f2-92b03574c164.jpg?v=1783164394"},{"product_id":"replacement-xl1000-cast-piston-020","title":"Replacement XL1000 cast piston. +.020\"","description":"Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. \r\n\r\nNote: Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884279087481,"sku":"600-0396","price":43.12,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/504360k_0607f43f-5a3a-4f46-81ce-a709411f593b.jpg?v=1783164394"},{"product_id":"replacement-xl1200-cast-piston-kit-std","title":"Replacement XL1200 cast piston kit. std","description":"Standard 9:1CR. Perfect for a stock rebuild. These cast type pistons are well known for their low expansion rate. They have a substantial lower price than OEM forged pistons. \r\n\r\nNote: Each piston includes one wrist pin and two wrist pin clips. Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884280037753,"sku":"600-0418","price":44.35,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/504559k_33a8b367-df1f-41dc-8e1e-80d944e4e1e5.jpg?v=1783164496"},{"product_id":"replacement-xl1200-cast-piston-kit-005","title":"Replacement XL1200 cast piston kit. +.005\"","description":"Standard 9:1CR. Perfect for a stock rebuild. These cast type pistons are well known for their low expansion rate. They have a substantial lower price than OEM forged pistons. \r\n\r\nNote: Each piston includes one wrist pin and two wrist pin clips. Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884280103289,"sku":"600-0419","price":44.35,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/504559k.jpg?v=1783164402"},{"product_id":"replacement-xl1200-cast-piston-kit-010","title":"Replacement XL1200 cast piston kit. +.010\"","description":"Standard 9:1CR. Perfect for a stock rebuild. These cast type pistons are well known for their low expansion rate. They have a substantial lower price than OEM forged pistons. \r\n\r\nNote: Each piston includes one wrist pin and two wrist pin clips. Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884280168825,"sku":"600-0420","price":44.35,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/504559k_12c73543-7d84-45ba-8123-0a8c1e1a6eaa.jpg?v=1783164402"},{"product_id":"replacement-xl1200-cast-piston-kit-020","title":"Replacement XL1200 cast piston kit. +.020\"","description":"Standard 9:1CR. Perfect for a stock rebuild. These cast type pistons are well known for their low expansion rate. They have a substantial lower price than OEM forged pistons. \r\n\r\nNote: Each piston includes one wrist pin and two wrist pin clips. Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884280234361,"sku":"600-0421","price":59.75,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/504559k_c8946cfc-c8d4-4cdd-829e-8707bb2ad5a2.jpg?v=1783164402"},{"product_id":"replacement-xl1200-cast-piston-kit-030","title":"Replacement XL1200 cast piston kit. +.030\"","description":"Standard 9:1CR. Perfect for a stock rebuild. These cast type pistons are well known for their low expansion rate. They have a substantial lower price than OEM forged pistons. \r\n\r\nNote: Each piston includes one wrist pin and two wrist pin clips. Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884280267129,"sku":"600-0422","price":44.35,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/504559k_e87829d9-a5b2-4ae9-8123-e25d711a0acc.jpg?v=1783164496"},{"product_id":"replacement-xl1200-cast-piston-kit-040","title":"Replacement XL1200 cast piston kit. +.040\"","description":"Standard 9:1CR. Perfect for a stock rebuild. These cast type pistons are well known for their low expansion rate. They have a substantial lower price than OEM forged pistons. \r\n\r\nNote: Each piston includes one wrist pin and two wrist pin clips. Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884280299897,"sku":"600-0423","price":44.35,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/504559k_51ac7db7-f2fd-4f23-86d8-8d14cec2c908.jpg?v=1783164402"},{"product_id":"replacement-cylinder-80-shovelhead-rear","title":"Replacement cylinder 80\" Shovelhead, rear","description":"Black painted stock replacement cast iron cylinder. Stock 3-1\/2\" bore. Repl. 16495-78. \r\n\r\nNote: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884384469369,"sku":"91-3141","price":241.61,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/517600k.jpg?v=1783164918"},{"product_id":"3-5-8-big-bore-shovel-cylinder-front-black","title":"3-5\/8\" big bore shovel cylinder front, black","description":"Stock 5.330\" length. Crankcases must be bored to accept the larger diameter cylinder. \r\n\r\nNote: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884384502137,"sku":"600-2345","price":221.21,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/517601k.jpg?v=1783164918"},{"product_id":"3-5-8-big-bore-shovel-cylinder-rear-black","title":"3-5\/8\" big bore shovel cylinder rear, black","description":"Stock 5.330\" length. Crankcases must be bored to accept the larger diameter cylinder. \r\n\r\nNote: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884384534905,"sku":"600-2346","price":221.21,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/906335k.jpg?v=1783165072"},{"product_id":"replacement-cylinder-80-shovelhead-front","title":"Replacement cylinder 80\" Shovelhead, front","description":"Black painted stock replacement cast iron cylinder. Stock 3-1\/2\" bore. Repl. 16494-78. \r\n\r\nNote: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884384633209,"sku":"91-3142","price":241.61,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/517605k_811f6a6c-1f23-417d-a3ee-029e47a3513f.jpg?v=1783165072"},{"product_id":"replacement-cylinder-1200-sportster-front-rear-silver","title":"Replacement cylinder 1200 Sportster, front\/rear. Silver","description":"Clear finish stock replacement aluminum cylinder with cast iron liner. Stock 3-1\/2\" bore. Stock 4.650\" length. Repl. 16447-88. \r\n\r\nNote: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884429525369,"sku":"600-2766","price":311.43,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/520369k.jpg?v=1783165154"},{"product_id":"replacement-cylinder-1200-sportster-front-rear-silver-1","title":"Replacement cylinder 1200 Sportster, front\/rear. Silver","description":"Silver finish. Stock replacement aluminum cylinder with cast iron liner. Stock 3-1\/2\" bore. Stock 4.650\" length. Repl. 17496-07. \r\n\r\nNote: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884433588601,"sku":"600-2777","price":263.24,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/521811k.jpg?v=1783165159"},{"product_id":"replacement-cylinder-1200-sportster-front-rear-black-1","title":"Replacement cylinder 1200 Sportster, front\/rear. Black","description":"Black finish. Stock replacement aluminum cylinder with cast iron liner. Stock 3-1\/2\" bore. Stock 4.650\" length. Repl. 16469-10. \r\n\r\nNote: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884433654137,"sku":"600-2778","price":314.27,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/521812k.jpg?v=1783165084"},{"product_id":"replacement-cylinder-1200-sportster-front-rear-black-2","title":"Replacement cylinder 1200 Sportster, front\/rear. Black","description":"Black with highlighted fins finished. Stock replacement aluminum cylinder with cast iron liner. Stock 3-1\/2\" bore. Stock 4.650\" length. Repl. 16463-04. \r\n\r\nNote: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884433686905,"sku":"91-3144","price":352.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/521813k.jpg?v=1783165084"},{"product_id":"107-to-124-big-bore-conversion-cylinders-for-m8","title":"107\" to 124\" big bore conversion cylinders for M8","description":"Black with highlighted fins. This is a quality 4.25\" bolt-on big bore cylinder kit for 107\" M8 models with stock 3.937\" bore x 4.375\" stroke. Kit can be used with a 4.25\" Wiseco big bore piston kit. Cylinders include dowel pins and are marked for correct front\/rear installation. Capacity will increase from stock 107\" (106.52\" \/ 1746cc) to a hefty 124\" (124.13 \/ 2034cc) but still installs without crankcase machining. Flywheel re-balancing is not required. Compression ratio is 1:11 and is compatible with the stock camshaft. Includes installation instructions. \r\nNote: Order 576555 Wiseco 4.25\" bore conversion pistons \u0026amp; 576556 Wiseco gasket kit separately.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884499878265,"sku":"600-3943","price":421.62,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/577193k.jpg?v=1783165393"},{"product_id":"107-to-124-4-25-big-bore-conversion-cylinders-for-m8","title":"107\" to 124\" 4.25\" big bore conversion cylinders for M8","description":"Black with highlighted fins. This is a quality 4.25\" bolt-on big bore cylinder kit for 107\" M8 models with stock 3.937\" bore x 4.375\" stroke. Kit can be used with a 4.25\" Wiseco big bore piston \u0026amp; ring kit. Cylinders include dowel pins and are marked for correct front\/rear installation. Capacity will increase from stock 107\" (106.52\" \/ 1746cc) to a hefty 124\" (124.13 \/ 2034cc) but still installs without crankcase machining. Flywheel re-balancing is not required. Compression ratio is 1:11 and is compatible with the stock camshaft. Includes installation instructions. \nNote: Order 576555 Wiseco 4.25\" bore conversion piston \u0026amp; ring kit \u0026amp; 576556 Wiseco gasket kit separately.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884530155897,"sku":"600-6021","price":423.57,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/709141k.jpg?v=1783165522"},{"product_id":"replacement-xl1000-cast-piston-070","title":"Replacement XL1000 cast piston. +.070\"","description":"Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. \r\n\r\nNote: Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884621480313,"sku":"600-8591","price":35.47,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/504360k_85896fcd-e9bb-419b-910b-42e88ae0c1b3.jpg?v=1783165922"},{"product_id":"replacement-1340cc-shovel-cast-piston-040","title":"Replacement 1340cc Shovel cast piston. +.040\"","description":"Standard 8.5:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. \r\n\r\nNote: Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884621644153,"sku":"600-8596","price":60.76,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/504495k_5fb8f4cc-99c0-4c80-9ca0-1e0fccef76c8.jpg?v=1783165987"},{"product_id":"replacement-xl-900cc-cast-piston-std","title":"Replacement XL 900cc cast piston. std","description":"Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. \r\n\r\nNote: Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884622791033,"sku":"600-8604","price":34.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/905281k.jpg?v=1783165924"},{"product_id":"replacement-xl-900cc-cast-piston-010","title":"Replacement XL 900cc cast piston. +.010\"","description":"Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. \r\n\r\nNote: Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884622823801,"sku":"600-8605","price":31.62,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/905281k_0cb491f1-78de-4860-abd5-45252fdc6a7b.jpg?v=1783165924"},{"product_id":"replacement-xl-900cc-cast-piston-020","title":"Replacement XL 900cc cast piston. +.020\"","description":"Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. \r\n\r\nNote: Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884622856569,"sku":"600-8606","price":31.62,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/905281k_7c5c4bd5-daec-413b-ba05-f941a5e44a12.jpg?v=1783165988"},{"product_id":"replacement-xl-900cc-cast-piston-030","title":"Replacement XL 900cc cast piston. +.030\"","description":"Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. \r\n\r\nNote: Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884623053177,"sku":"600-8607","price":32.53,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/905281k_9876a192-b7c9-4c77-ae50-a5f978d4a510.jpg?v=1783165994"},{"product_id":"replacement-xl-900cc-cast-piston-040","title":"Replacement XL 900cc cast piston. +.040\"","description":"Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. \r\n\r\nNote: Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884623085945,"sku":"600-8608","price":31.34,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/905281k_9270c458-fd35-4024-88a9-3bb9930514a5.jpg?v=1783165995"},{"product_id":"replacement-xl-900cc-cast-piston-050","title":"Replacement XL 900cc cast piston. +.050\"","description":"Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. \r\n\r\nNote: Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884623118713,"sku":"600-8609","price":31.34,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/905281k_5aed0b6f-4d2d-4c33-95b0-e87f8978d408.jpg?v=1783165925"},{"product_id":"replacement-xl-900cc-cast-piston-060","title":"Replacement XL 900cc cast piston. +.060\"","description":"Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. \r\n\r\nNote: Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884623151481,"sku":"600-8610","price":32.63,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/905281k_946a2d0b-ce41-4ea6-aa71-9870bb99edd8.jpg?v=1783165925"},{"product_id":"replacement-xl-900cc-cast-piston-080","title":"Replacement XL 900cc cast piston. +.080\"","description":"Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. \r\n\r\nNote: Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884623184249,"sku":"600-8611","price":34.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/905281k_d022d9b1-27ca-46da-ae70-ed578649f7ae.jpg?v=1783165926"},{"product_id":"200-3-5-8-big-bore-shovel-cylinder-front-black","title":"'+.200\" 3-5\/8\" big bore shovel cylinder front, black","description":"+.200\" longer (5.530\") than stock. Stock length is 5.330\". Crankcases must be bored to accept the larger diameter cylinder. A longer than stock length is typically used in combination with stroker flywheels. \r\n\r\nNote: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884653724025,"sku":"600-8863","price":241.26,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/906330k.jpg?v=1783166079"},{"product_id":"200-3-5-8-big-bore-shovel-cylinder-rear-black","title":"'+.200\" 3-5\/8\" big bore shovel cylinder rear, black","description":"+.200\" longer (5.530\") than stock. Stock length is 5.330\". Crankcases must be bored to accept the larger diameter cylinder. A longer than stock length is typically used in combination with stroker flywheels. \r\n\r\nNote: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884653756793,"sku":"600-8864","price":221.21,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/906335k_4d8cd3c5-a34d-4da9-8bda-6909b5f8a0de.jpg?v=1783166033"},{"product_id":"mcs-repl-evo-b-t-cast-piston-std","title":"MCS, repl. Evo B.T. cast piston. std","description":"Standard 8.5:1CR. Perfect for a stock rebuild. These cast type pistons are well known for their low expansion rate. They have a substantial lower price than OEM forged pistons. \r\n\r\nNote: Each piston includes one wrist pin and two wrist pin clips. Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884654018937,"sku":"600-8871","price":56.49,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/906565k_d9adf554-9340-4fce-9c53-792ae8973537.jpg?v=1783166085"},{"product_id":"mcs-repl-evo-b-t-cast-piston-005","title":"MCS, repl. Evo B.T. cast piston. +.005\"","description":"Standard 8.5:1CR. Perfect for a stock rebuild. These cast type pistons are well known for their low expansion rate. They have a substantial lower price than OEM forged pistons. \r\n\r\nNote: Each piston includes one wrist pin and two wrist pin clips. Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884654051705,"sku":"600-8872","price":40.83,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/906565k.jpg?v=1783166035"},{"product_id":"mcs-repl-evo-b-t-cast-piston-010","title":"MCS, repl. Evo B.T. cast piston. +.010\"","description":"Standard 8.5:1CR. Perfect for a stock rebuild. These cast type pistons are well known for their low expansion rate. They have a substantial lower price than OEM forged pistons. \r\n\r\nNote: Each piston includes one wrist pin and two wrist pin clips. Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884654084473,"sku":"600-8873","price":55.54,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/906565k_ba11a416-5da4-421c-a235-81c9e2dbae9d.jpg?v=1783166035"},{"product_id":"mcs-repl-evo-b-t-cast-piston-020","title":"MCS, repl. Evo B.T. cast piston. +.020\"","description":"Standard 8.5:1CR. Perfect for a stock rebuild. These cast type pistons are well known for their low expansion rate. They have a substantial lower price than OEM forged pistons. \r\n\r\nNote: Each piston includes one wrist pin and two wrist pin clips. Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884654117241,"sku":"600-8874","price":46.81,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/906565k_559c6d4f-c79e-4e6a-a068-3e3818089071.jpg?v=1783166036"},{"product_id":"mcs-repl-evo-b-t-cast-piston-030","title":"MCS, repl. Evo B.T. cast piston. +.030\"","description":"Standard 8.5:1CR. Perfect for a stock rebuild. These cast type pistons are well known for their low expansion rate. They have a substantial lower price than OEM forged pistons. \r\n\r\nNote: Each piston includes one wrist pin and two wrist pin clips. Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884654150009,"sku":"600-8875","price":40.83,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/906565k_ce28eb6f-88fa-45f2-b2de-0dfc8efb02b5.jpg?v=1783166085"},{"product_id":"mcs-repl-evo-b-t-cast-piston-040","title":"MCS, repl. Evo B.T. cast piston. +.040\"","description":"Standard 8.5:1CR. Perfect for a stock rebuild. These cast type pistons are well known for their low expansion rate. They have a substantial lower price than OEM forged pistons. \r\n\r\nNote: Each piston includes one wrist pin and two wrist pin clips. Piston rings must be purchased separately. \r\nNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.","brand":"MCS","offers":[{"title":"Default Title","offer_id":63884654182777,"sku":"600-8876","price":40.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/906565k_4d5aa154-31c6-468c-be36-33d2e08cdb7b.jpg?v=1783166036"},{"product_id":"standard-cylinder-kit-38-mm-50-cc-1","title":"STANDARD CYLINDER KIT 38 MM, 50 CC","description":"INTAKE 8,7 MM","brand":"ATHENA","offers":[{"title":"Default Title","offer_id":63983895773561,"sku":"601-2512","price":160.17,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/pim_f9bd42de-e841-4332-8109-ac63fea1b4a1_2000-2000.jpg?v=1784178917"},{"product_id":"standard-cylinder-kit-38-mm-50-cc-2","title":"STANDARD CYLINDER KIT 38 MM, 50 CC","description":"INTAKE 9,0 MM","brand":"ATHENA","offers":[{"title":"Default Title","offer_id":63983895806329,"sku":"601-2513","price":235.55,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/pim_c7e7f3cf-c2c6-48e5-88ca-304d5077e23a_2000-2000.jpg?v=1784178917"},{"product_id":"standard-cylinder-kit-38-mm-50-cc-3","title":"STANDARD CYLINDER KIT 38 MM, 50 CC","description":null,"brand":"ATHENA","offers":[{"title":"Default Title","offer_id":63983895871865,"sku":"601-2515","price":213.12,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/pim_54ea5b20-6179-416b-a980-3cef9fe4e994_2000-2000.jpg?v=1784178917"},{"product_id":"big-bore-cylinder-kit-45-mm-70-cc","title":"BIG BORE CYLINDER KIT 45 MM, 70 CC","description":null,"brand":"ATHENA","offers":[{"title":"Default Title","offer_id":63983897248121,"sku":"601-2525","price":191.02,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/pim_46e19027-690d-4862-b89d-d5f3a0f0c110_2000-2000.jpg?v=1784178920"},{"product_id":"big-bore-cylinder-kit-45-mm-70-cc-1","title":"BIG BORE CYLINDER KIT 45 MM, 70 CC","description":null,"brand":"ATHENA","offers":[{"title":"Default Title","offer_id":63983899017593,"sku":"601-2533","price":252.41,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/pim_5b19e045-0cee-4ae7-b1a5-b42ea17305d8_2000-2000.jpg?v=1784178923"},{"product_id":"big-bore-cylinder-kit-46-mm-70-cc","title":"BIG BORE CYLINDER KIT 46 MM, 70 CC","description":null,"brand":"ATHENA","offers":[{"title":"Default Title","offer_id":63983899345273,"sku":"601-2535","price":213.12,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/pim_5c4314aa-51ae-4ea2-8c77-8bfc05a756ac_2000-2000.jpg?v=1784178923"},{"product_id":"standard-cylinder-kit-39-mm-50-cc","title":"STANDARD CYLINDER KIT 39 MM, 50 CC","description":"4 TRANSFERS","brand":"ATHENA","offers":[{"title":"Default Title","offer_id":63983899705721,"sku":"601-2546","price":246.77,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/pim_032410bb-779b-4c8e-b531-39d116b9e33a_2000-2000.jpg?v=1784178925"},{"product_id":"cylinder-head-2t-cylinder-kits","title":"CYLINDER HEAD 2T CYLINDER KITS","description":null,"brand":"ATHENA","offers":[{"title":"Default Title","offer_id":63983900688761,"sku":"601-2552","price":85.74,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/pim_67b08018-2a76-466e-b282-7de0d9249fdf_2000-2000.jpg?v=1784178927"},{"product_id":"big-bore-cylinder-kit-45-mm-70-cc-2","title":"BIG BORE CYLINDER KIT 45 MM, 70 CC","description":"ZUNDAPP SUPER TERM 50CC \/ FAMEL 50CC","brand":"ATHENA","offers":[{"title":"Default Title","offer_id":63983901770105,"sku":"601-2557","price":246.77,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0010\/7641\/files\/pim_f38ca736-a868-436c-985e-ccb9fd9a3c48_2000-2000.jpg?v=1784178928"}],"url":"https:\/\/motorcyclesunited.com\/de\/collections\/big-bore-kits.oembed","provider":"Motorcycles United","version":"1.0","type":"link"}