{"title":"KB Performance","description":"\u003cp\u003eShop KB Performance motorcycle replacement parts, engine components, filters, and service items at Parts4Motorcycles. This brand collection brings current KB Performance products together for riders comparing fitment, replacement parts, gear, and upgrades in one place.\u003c\/p\u003e\u003cp\u003eReview product titles, photos, variant details, availability, and fitment notes before ordering. If you are unsure about compatibility, contact Parts4Motorcycles and we will help confirm the right match for your motorcycle.\u003c\/p\u003e","products":[{"product_id":"kb-performance-forged-piston-kit","title":"KB PERFORMANCE Forged Piston Kit","description":"\u003cp\u003e\u003cstrong\u003eKB PERFORMANCE Forged Piston Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKB PERFORMANCE Forged Piston Kit by KB PERFORMANCE is a engine parts listing built for riders searching by exact product name, fitment, style, and part number.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOffset pin design for quiet operation\u003c\/li\u003e\n\u003cli\u003eEach kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings\u003c\/li\u003e\n\u003cli\u003eReplacement rings and pin locks are also available separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePart Numbers\u003c\/h3\u003e\u003cp\u003e0910-3971, KB660C.005, 0910-0939, KB909C.STD, 0910-3970, KB660C.STD, 0910-0935, KB906C.STD, 0910-0933, KB904C.STD, 0910-0937, KB907C.STD, 0910-3974, KB661C.005, 0910-3975, KB661C.010, 0910-3973, KB661C.STD, 0910-3976, KB662C.STD\u003c\/p\u003e\n\u003ch3\u003eAvailable Styles\u003c\/h3\u003e\u003cp\u003ePiston Kit \/ 3.875\" +0.005\" \/ 10.0:1 CR \/ 103\" Twin Cam | 96\" Big Bore to 103\" w\/SE 95 cc Heads; Piston Kit \/ 3.875\" Standard -10.5:1 CR \/ 96\" to 103\" Big Bore |103\" Twin Cam; Piston Kit \/ 3.875\" Standard \/ 10.0:1 CR \/ 103\" Twin Cam | 96\" Big Bore to 103\" w\/SE 95 cc Heads; Piston Kit \/ 3.875\" Standard \/ 10.5:1 CR \/ Big Bore \/ 95\" Twin Cam; Piston Kit \/ 3.875\" Standard \/ 9.25:1 CR \/ Big Bore \/ 95\" Twin Cam; Piston Kit \/ 3.875\" Standard \/ 9.5:1 CR \/ 96\" to 103\" Big Bore |103\" Twin Cam; Piston Kit \/ 4.000\" +0.005\" \/ 10.0:1 CR \/ 96\"\/103\" Twin Cam Bored to 110 CI w\/SE 95 cc Heads; Piston Kit \/ 4.000\" +0.010\" \/ 10.0:1 CR \/ 96\"\/103\" Twin Cam Bored to 110 CI w\/SE 95 cc Heads; Piston Kit \/ 4.000\" Standard \/ 10.0:1 CR \/ 96\"\/103\" Twin Cam Bored to 110 CI w\/SE 95 cc Heads; Piston Kit \/ 4.125\" Standard \/ 10.0:1 CR \/ 96\"\/103\" Twin Cam Bored to 117 CI w\/SE 95 cc Heads\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAvailable options:\u003c\/strong\u003e 10\u003c\/p\u003e","brand":"KB PERFORMANCE","offers":[{"title":"Piston Kit \/ 3.875\" Standard \/ 10.0:1 CR \/ 103\" Twin Cam | 96\" Big Bore to 103\" w\/SE 95 cc Heads","offer_id":43991218946135,"sku":"09103970","price":322.95,"currency_code":"USD","in_stock":false},{"title":"Piston Kit \/ 3.875\" +0.005\" \/ 10.0:1 CR \/ 103\" Twin Cam | 96\" Big Bore to 103\" w\/SE 95 cc Heads","offer_id":43991218978903,"sku":"09103971","price":322.95,"currency_code":"USD","in_stock":false},{"title":"Piston Kit \/ 4.125\" Standard \/ 10.0:1 CR \/ 96\"\/103\" Twin Cam Bored to 117 CI w\/SE 95 cc Heads","offer_id":43991219011671,"sku":"09103976","price":322.95,"currency_code":"USD","in_stock":true},{"title":"Piston Kit \/ 4.000\" Standard \/ 10.0:1 CR \/ 96\"\/103\" Twin Cam Bored to 110 CI w\/SE 95 cc Heads","offer_id":43991219044439,"sku":"09103973","price":322.95,"currency_code":"USD","in_stock":true},{"title":"Piston Kit \/ 4.000\" +0.010\" \/ 10.0:1 CR \/ 96\"\/103\" Twin Cam Bored to 110 CI w\/SE 95 cc Heads","offer_id":43991219077207,"sku":"09103975","price":322.95,"currency_code":"USD","in_stock":true},{"title":"Piston Kit \/ 4.000\" +0.005\" \/ 10.0:1 CR \/ 96\"\/103\" Twin Cam Bored to 110 CI w\/SE 95 cc Heads","offer_id":43991219109975,"sku":"09103974","price":322.95,"currency_code":"USD","in_stock":false},{"title":"Piston Kit \/ 3.875\" Standard \/ 9.5:1 CR \/ 96\" to 103\" Big Bore |103\" Twin Cam","offer_id":43991219142743,"sku":"09100937","price":322.95,"currency_code":"USD","in_stock":true},{"title":"Piston Kit \/ 3.875\" Standard \/ 9.25:1 CR \/ Big Bore \/ 95\" Twin Cam","offer_id":43991219175511,"sku":"09100933","price":322.95,"currency_code":"USD","in_stock":false},{"title":"Piston Kit \/ 3.875\" Standard \/ 10.5:1 CR \/ Big Bore \/ 95\" Twin Cam","offer_id":43991219208279,"sku":"09100935","price":322.95,"currency_code":"USD","in_stock":false},{"title":"Piston Kit \/ 3.875\" Standard -10.5:1 CR \/ 96\" to 103\" Big Bore |103\" Twin Cam","offer_id":43991219241047,"sku":"09100939","price":322.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4928\/2135\/files\/180A9AD3-A8EC-4285-91D5-D6ED7F419544.png?v=1782737941"},{"product_id":"kb-performance-piston-and-ring-kit","title":"KB PERFORMANCE Piston and Ring Kit","description":"\u003cp\u003e\u003cstrong\u003eKB PERFORMANCE Piston and Ring Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKB PERFORMANCE Piston and Ring Kit by KB PERFORMANCE is a engine parts listing built for riders searching by exact product name, fitment, style, and part number.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePistons forged from 4032 aluminum alloy\u003c\/li\u003e\n\u003cli\u003eOffset pin design for quiet operation\u003c\/li\u003e\n\u003cli\u003eNew superior coated skirts\u003c\/li\u003e\n\u003cli\u003eEach kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePart Numbers\u003c\/h3\u003e\u003cp\u003e0910-5058, KB921C.005, 0910-5055, KB920C.005, 0910-5059, KB921C.010, 0910-5056, KB920C.010\u003c\/p\u003e\n\u003ch3\u003eAvailable Styles\u003c\/h3\u003e\u003cp\u003ePiston Kit \/ 3.498\" +0.005\" \/ 10.5:1 CR \/ Evolution Big Twin; Piston Kit \/ 3.498\" +0.005\" \/ 9.5:1 CR \/ Evolution Big Twin; Piston Kit \/ 3.498\" +0.010\" \/ 10.5:1 CR \/ Evolution Big Twin; Piston Kit \/ 3.498\" +0.010\" \/ 9.5:1 CR \/ Evolution Big Twin\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAvailable options:\u003c\/strong\u003e 4\u003c\/p\u003e","brand":"KB PERFORMANCE","offers":[{"title":"Piston Kit \/ 3.498\" +0.005\" \/ 10.5:1 CR \/ Evolution Big Twin","offer_id":43991239589975,"sku":"09105058","price":299.95,"currency_code":"USD","in_stock":true},{"title":"Piston Kit \/ 3.498\" +0.005\" \/ 9.5:1 CR \/ Evolution Big Twin","offer_id":43991239622743,"sku":"09105055","price":299.95,"currency_code":"USD","in_stock":true},{"title":"Piston Kit \/ 3.498\" +0.010\" \/ 10.5:1 CR \/ Evolution Big Twin","offer_id":43991239655511,"sku":"09105059","price":299.95,"currency_code":"USD","in_stock":false},{"title":"Piston Kit \/ 3.498\" +0.010\" \/ 9.5:1 CR \/ Evolution Big Twin","offer_id":43991239688279,"sku":"09105056","price":299.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4928\/2135\/files\/489004FE-EC13-41B5-B549-84D74332D7BC.png?v=1782737964"},{"product_id":"kb-performance-super-duty-big-bore-piston-kit","title":"KB PERFORMANCE Super-Duty Big Bore Piston Kit","description":"\u003cp\u003e\u003cstrong\u003eKB PERFORMANCE Super-Duty Big Bore Piston Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKB PERFORMANCE Super-Duty Big Bore Piston Kit by KB PERFORMANCE is a engine parts listing built for riders searching by exact product name, fitment, style, and part number.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eValve pockets are designed to accept up to +4.00 mm oversized intake and exhaust valves\u003c\/li\u003e\n\u003cli\u003eType 3 hard-anodized crown offers corrosion resistance for alcohol-added fuels\u003c\/li\u003e\n\u003cli\u003eType 3 hard-anodized top ring groove eliminates micro-welding of ring to the groove and gives a hard-flat surface for ring to rotate on\u003c\/li\u003e\n\u003cli\u003eOE-style round wire locks are easily installed\u003c\/li\u003e\n\u003cli\u003eHeavy-duty wrist pins with true 0.9270” diameter to fit rods correctly\u003c\/li\u003e\n\u003cli\u003eLine2Line AST skirt coating starts out with a near-zero wall clearance and through the break-in period hones the cylinders to produce the correct oil wedge, keeping the piston square to the cylinder for best ring seal and quiet operation\u003c\/li\u003e\n\u003cli\u003eKit includes pistons, rings, pins and locks\u003c\/li\u003e\n\u003cli\u003eRequires 4.250\" bore cylinder sold separately.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePart Numbers\u003c\/h3\u003e\u003cp\u003e0910-6178, KB576LCA.005, 0910-6406, KB596LCA.005, 0910-6404, KB595LCA.005, 0910-6177, KB576LCA.STD, 0910-6405, KB596LCA.STD, 0910-6403, KB595LCA.STD\u003c\/p\u003e\n\u003ch3\u003eAvailable Styles\u003c\/h3\u003e\u003cp\u003ePiston Kit \/ 4.250\" +0.005\" \/ 11.4:1 CR \/ 124\" Big Bore \/ 107\" M8; Piston Kit \/ 4.250\" +0.005\" \/ 11.7:1 CR \/ 128\" Big Bore \/ 114\"\/117\" M8; Piston Kit \/ 4.250\" +0.005\" \/ 11.8:1 CR \/ 124\" Big Bore \/ 107\" M8; Piston Kit \/ 4.250\" Standard \/ 11.4:1 CR \/ 124\" Big Bore \/ 107\" M8; Piston Kit \/ 4.250\" Standard \/ 11.7:1 CR \/ 128\" Big Bore \/ 114\"\/117\" M8; Piston Kit \/ 4.250\" Standard \/ 11.8:1 CR \/ 124\" Big Bore \/ 107\" M8\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAvailable options:\u003c\/strong\u003e 6\u003c\/p\u003e","brand":"KB PERFORMANCE","offers":[{"title":"Piston Kit \/ 4.250\" Standard \/ 11.4:1 CR \/ 124\" Big Bore \/ 107\" M8","offer_id":43991246536791,"sku":"09106177","price":446.95,"currency_code":"USD","in_stock":false},{"title":"Piston Kit \/ 4.250\" +0.005\" \/ 11.7:1 CR \/ 128\" Big Bore \/ 114\"\/117\" M8","offer_id":43991246569559,"sku":"09106406","price":446.95,"currency_code":"USD","in_stock":false},{"title":"Piston Kit \/ 4.250\" +0.005\" \/ 11.4:1 CR \/ 124\" Big Bore \/ 107\" M8","offer_id":43991246602327,"sku":"09106178","price":446.95,"currency_code":"USD","in_stock":true},{"title":"Piston Kit \/ 4.250\" Standard \/ 11.8:1 CR \/ 124\" Big Bore \/ 107\" M8","offer_id":43991246635095,"sku":"09106403","price":446.95,"currency_code":"USD","in_stock":true},{"title":"Piston Kit \/ 4.250\" Standard \/ 11.7:1 CR \/ 128\" Big Bore \/ 114\"\/117\" M8","offer_id":43991246667863,"sku":"09106405","price":446.95,"currency_code":"USD","in_stock":false},{"title":"Piston Kit \/ 4.250\" +0.005\" \/ 11.8:1 CR \/ 124\" Big Bore \/ 107\" M8","offer_id":43991246700631,"sku":"09106404","price":446.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4928\/2135\/files\/84A0D605-95CE-4FBB-ABA8-1295E10D2B90.png?v=1782737980"}],"url":"https:\/\/parts4motorcycles.com\/collections\/kb-performance.oembed","provider":"Parts4Motorcycles","version":"1.0","type":"link"}