{"title":"Keith Black Pistons","description":null,"products":[{"product_id":"rokb-rrn-81-keith-black-pistons-replacement-spiral-lock-evoshovel","title":"Keith Black Pistons Replacement Piston Pin Spiral Lock. Fits Kb Shovel, Evolution \u0026 Sportster Pistons.","description":"\u003cp\u003eReplacement Piston Pin Spiral Lock. Fits KB Shovel Evolution \u0026amp; Sportster Pistons. Spiral Retaining Ring Installation Tips:\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065100632383,"sku":"ROKB-RRN-81","price":7.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB-RRN-81_1_1.jpg?v=1754039361"},{"product_id":"rokb-0927x208k-keith-black-pistons-replacement-piston-pin","title":"Keith Black Pistons REPLACEMENT PISTON PIN","description":"\u003cp\u003eT-Shirt; Cobra - M\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065101058367,"sku":"ROKB-0927X208K","price":4.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB-0927X208K_1_1.jpg?v=1753947153"},{"product_id":"rokb-0927x300k-keith-black-pistons-replacement-piston-pin","title":"Keith Black Pistons REPLACEMENT PISTON PIN","description":"\u003cp\u003eT-Shirt; Service \u0026amp; Supply -2XL\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065101091135,"sku":"ROKB-0927X300K","price":4.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB-0927X300K_1_1.jpg?v=1753947152"},{"product_id":"rokb-0927x216k-keith-black-pistons-replacement-piston-pin","title":"Keith Black Pistons REPLACEMENT PISTON PIN","description":"\u003cp\u003eT-Shirt; Dixxon Break The Chains\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065101222207,"sku":"ROKB-0927X216K","price":4.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB-0927X216K_1_1.jpg?v=1753947152"},{"product_id":"rokb-2m4941-010-keith-black-pistons-replacement-ring-set","title":"Keith Black Pistons REPLACEMENT RING SET","description":"\u003cp\u003e\u003cstrong\u003eKeith Black Replacement Piston Ring Set\u003c\/strong\u003e\u003cbr\u003eHigh-quality piston ring set designed for Harley-Davidson engines. Provides a reliable seal between the piston and cylinder, ensuring optimal compression, improved performance, and reduced oil consumption. Manufactured for durability and long-lasting engine protection.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065101353279,"sku":"ROKB-2M4941.010","price":82.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB-2M4941.010_1_1.jpg?v=1753947151"},{"product_id":"rokb-2m4985-005-keith-black-pistons-replacement-ring-set","title":"Keith Black Pistons REPLACEMENT RING SET","description":"\u003cp\u003ePiston Rings. Fits Keith Black Pistons Twin Cam Big Bore 88in. \u0026gt; 95in. with 3.880in. Bore.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065101418815,"sku":"ROKB-2M4985.005","price":27.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB-2M4985.005_1_1.jpg?v=1753947151"},{"product_id":"rokb-2m4985-010-keith-black-pistons-replacement-ring-set","title":"Keith Black Pistons REPLACEMENT RING SET","description":"\u003cp\u003e\u003cstrong\u003eKeith Black Replacement Piston Ring Set\u003c\/strong\u003e\u003cbr\u003ePremium piston ring set designed for Harley-Davidson engines. Ensures a secure seal between pistons and cylinders, improving compression, performance, and reducing oil consumption. Durable construction for long-lasting engine reliability.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065101451583,"sku":"ROKB-2M4985.010","price":56.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB-2M4985.010_1_1.jpg?v=1753947150"},{"product_id":"rokb-2m6127-030-keith-black-pistons-replacement-ring-set","title":"Keith Black Pistons REPLACEMENT RING SET","description":"\u003cp\u003ePiston Rings. Fits Most Keith Black Pistons with 3.528in. Bore.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065101549887,"sku":"ROKB-2M6127.030","price":41.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB-2M6127.030_1.jpg?v=1753947150"},{"product_id":"rokb-2m7003-std-keith-black-pistons-replacement-ring-set","title":"Keith Black Pistons REPLACEMENT RING SET","description":"\u003cp\u003e\u003cstrong\u003eKeith Black Replacement Piston Ring Set\u003c\/strong\u003e\u003cbr\u003eReplacement piston ring set designed for Harley-Davidson engines. Ensures optimal compression, reduces oil consumption, and maintains engine performance. Durable construction for long-lasting reliability.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065101582655,"sku":"ROKB-2M7003.STD","price":116.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB-2M7003.STD_1_1.jpg?v=1753947149"},{"product_id":"rokb-2m7003-030-keith-black-pistons-replacement-ring-set","title":"Keith Black Pistons REPLACEMENT RING SET","description":"\u003cp\u003e\u003cstrong\u003eKeith Black Replacement Piston Ring Set\u003c\/strong\u003e\u003cbr\u003eHigh-performance piston ring set designed for Harley-Davidson engines. Provides a precise seal between the piston and cylinder, enhancing compression, engine efficiency, and reducing oil consumption. Built for durability and long-lasting performance.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065101615423,"sku":"ROKB-2M7003.030","price":66.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB-2M7003.030_1_1.jpg?v=1753947149"},{"product_id":"rokb-2m7003-040-keith-black-pistons-replacement-ring-set","title":"Keith Black Pistons REPLACEMENT RING SET","description":"\u003cp\u003e-\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065101680959,"sku":"ROKB-2M7003.040","price":66.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB-2M7003.040_1_1.jpg?v=1753947148"},{"product_id":"rokb258-010-keith-black-pistons-pistons-bt84-99-evo-010-8-61","title":"+.010in. Flat Top Pistons with 8.6:1 Compression Ratio. Fits Big Twin 1984-1999 with Evo Engine. - Keith Black Pistons","description":"\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Bore = 3.508\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Stroke = 4.250\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Hypereutectic Alloy is a cast 16% silicon content material.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Perfect for air cooled engines.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Low thermal expansion rate = tighter piston-to-cylinder clearance.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Complete kit includes: two pistons, rings, wrist pins and clips.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Replaces OEM # 21942-83\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTech Tips:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* 8.6:1 Compression Ratio with 80cc Head Chamber Volume.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Follow Ring End Gap \u0026amp; Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Pull the engine down first \u0026amp; measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders \u0026amp; required pistons.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065101812031,"sku":"ROKB258.010","price":436.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB258.010_1_1.jpg?v=1754039359"},{"product_id":"rokb258-020-keith-black-pistons-pistons-bt84-99-evo-020-8-61","title":"+.020in. Flat Top Pistons with 8.6:1 Compression Ratio. Fits Big Twin 1984-1999 with Evo Engine. - Keith Black Pistons","description":"\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Bore = 3.518\" \u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Stroke = 4.250\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Hypereutectic Alloy is a cast 16% silicon content material.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Perfect for air cooled engines.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Low thermal expansion rate = tighter piston-to-cylinder clearance.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Complete kit includes: two pistons, rings, wrist pins and clips.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Replaces OEM # 21943-83\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTech Tips:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* 8.6:1 Compression Ratio with 80cc Head Chamber Volume.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Follow Ring End Gap \u0026amp; Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Pull the engine down first \u0026amp; measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders \u0026amp; required pistons.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065101844799,"sku":"ROKB258.020","price":436.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB258.020_1_1.jpg?v=1754039358"},{"product_id":"rokb263-050-keith-black-pistons-pistons-bt41-79-050-8-51","title":"Keith Black Pistons PISTONS BT41-79 +.050 8.5:1","description":"\u003cp\u003e+.050in. Pistons with 8.5:1 Compression Ratio. Fits Big Twin 1941-1979 with 1200cc Engine.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065102270783,"sku":"ROKB263.050","price":236.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB263.050_1_1.jpg?v=1753947144"},{"product_id":"rokb263-070-keith-black-pistons-pistons-bt41-79-070-8-51","title":"+.070in. Pistons with 8.5:1 Compression Ratio. Fits Big Twin 1941-1979 with 1200cc Engine. - Keith Black Pistons","description":"\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Bore = 3.507\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Stroke = 3.969\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Hypereutectic Alloy is a cast 16% silicon content material.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Perfect for air cooled engines.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Low thermal expansion rate = tighter piston-to-cylinder clearance.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Complete kit includes: two pistons, rings, wrist pins and clips.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Replaces OEM # 22149-55C\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Replaces OEM # 22149-74A\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTech Tips:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Follow Ring End Gap \u0026amp; Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Pull the engine down first \u0026amp; measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders \u0026amp; required pistons.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065102336319,"sku":"ROKB263.070","price":448.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB263.070_1_1.jpg?v=1754039354"},{"product_id":"rokb264-040-keith-black-pistons-pistons-xl86-21-1200-040-9-01","title":"+.040in. Flat Top Pistons with 9.0:1 Compression Ratio. Fits Sportster 1986-2021 with 1200cc Engine \u0026 Sportster 1986-1987 with 1100cc Engine. - Keith Black Pistons","description":"\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Bore = 3.538\" \u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Stroke = 3.812\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Hypereutectic Alloy is a cast 16% silicon content material.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Perfect for air cooled engines.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Low thermal expansion rate = tighter piston-to-cylinder clearance.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Complete kit includes: two pistons, rings, wrist pins and clips.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003eTech Tips:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* 9.0:1 Compression Ratio with 69cc Head Chamber Volume.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Follow Ring End Gap \u0026amp; Piston to Cylinder Clearances as per the supplied Manufac\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eturers Instructions.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Pull the engine down first \u0026amp; measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders \u0026amp; required pistons.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065102401855,"sku":"ROKB264.040","price":247.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB264.040_1_1.jpg?v=1754039353"},{"product_id":"rokb266-030-keith-black-pistons-pistons-bt84-99-evo-030-10-51","title":"Keith Black Pistons PISTONS BT84-99 EVO +.030 10.5:1","description":"\u003cp\u003e+.030in. Dome Top Pistons with 10.5:1 Compression Ratio. Fits Big Twin 1984-1999 with Evo Engine.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065102631231,"sku":"ROKB266.030","price":434.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB266.030_1.jpg?v=1753947140"},{"product_id":"rokb292-020-keith-black-pistons-pistons-xl72-85-1000-020-8-21","title":"+.020in. Dome Top Pistons with 8.2:1 Compression Ratio. Fits Sportster 1972-1985 with 1000cc Engine. - Keith Black Pistons","description":"\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Bore = 3.208\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Stroke = 3.812\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Fits Iron Head Sporty.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Hypereutectic Alloy is a cast 16% silicon content material.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Perfect for air cooled engines.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Low thermal expansion rate = tighter piston-to-cylinder clearance.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Complete kit includes: two pistons, rings, wrist pins and clips.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Replaces OEM # 22254-83\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003eTech Tips:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* 8.2:1 Compression Ratio with 110cc Head Chamber Volume.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Follow Ring End\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eGap \u0026amp; Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Pull the engine down first \u0026amp; measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders \u0026amp; required pistons.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065102762303,"sku":"ROKB292.020","price":293.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB292.020_1_1.jpg?v=1754039348"},{"product_id":"rokb297-010-keith-black-pistons-pistons-bt78-84-010-8-31","title":"+.010in. Dome Top Pistons with 8.3:1 Compression Ratio. Fits Big Twin 1978-1984 with 1340cc Shovel Engine. - Keith Black Pistons","description":"\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Bore = 3.508\" \u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Stroke = 4.250\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Hypereutectic Alloy is a cast 16% silicon content material\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Perfect for air cooled engines\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Low thermal expansion rate = tighter piston-to-cylinder clearance.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Complete kit includes: two pistons, rings, wrist pins and clips.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Replaces OEM # 21991-80\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTech Tips:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* 8.3:1 Compression Ratio with 117cc Head Chamber Volume.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Follow Ring End Gap \u0026amp; Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Pull the engine down first \u0026amp; measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders \u0026amp; required pistons.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065102827839,"sku":"ROKB297.010","price":460.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB297.010_1_1.jpg?v=1754039348"},{"product_id":"rokb410-010-keith-black-pistons-pistons-xl86-03-8831200","title":"+.010in. Flat Top Pistons with 9.1:1 Compression Ratio. Fits Sportster 1986-2003 with Big Bore 883cc to 1200cc Conversion. - Keith Black Pistons","description":"\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Bore = 3.508\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Stroke = 3.812\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Hypereutectic Alloy is a cast 16% silicon content material.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Perfect for air cooled engines.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Low thermal expansion rate = tighter piston-to-cylinder clearance.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Complete kit includes: two pistons, rings, wrist pins and clips.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003eTech Tips:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Piston is 0.125\" below deck to achieve 9.1:1 Compression.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Follow Ring End Gap \u0026amp; Piston to Cylinder Clearances as per the supplied Manuf\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eacturers Instructions.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Pull the engine down first \u0026amp; measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders \u0026amp; required pistons.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065103089983,"sku":"ROKB410.010","price":267.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB410.010_1_1.jpg?v=1754039344"},{"product_id":"rokb906c-010-keith-black-pistons-pistons-tcam99-06-8895-010","title":"+.010in. Dome Top Pistons with 10.5:1 Compression Ratio. Fits Twin Cam 1999-2006 88ci to 95ci Conversion. - Keith Black Pistons","description":"\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Bore = 3.885\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Stroke = 4.000\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Forged 4032 Alloy is an 11% silicon alloy that is formed in a forging press then fully machined.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Best resistance to cracking in hi-comp performance applications.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Require .001\" wider piston to wall clearance.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Anti-Friction skirt coating.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Complete kit includes: two pistons, rings, wrist pins and clips.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTech Tips:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* 10.5:1 Compression Ratio with 85cc Head Chamber Volume.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Follow Ring End Gap \u0026amp; Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Pull the engine down first \u0026amp; measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders \u0026amp; required pistons.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065103253823,"sku":"ROKB906C.010","price":602.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB906C.010_1_1.jpg?v=1754039342"},{"product_id":"rokb920-std-keith-black-pistons-pistons-bt84-99-std-9-51","title":"Keith Black Pistons PISTONS BT84-99 STD 9.5:1","description":"\u003cp\u003eStd Dome Top Pistons with 9.5:1 Compression Ratio. Fits Big Twin 1984-1999.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065103450431,"sku":"ROKB920.STD","price":564.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB920.STD_1_1.jpg?v=1753947133"},{"product_id":"rokb920-010-keith-black-pistons-pistons-bt84-99-010-9-51","title":"Keith Black Pistons PISTONS BT84-99 +.010 9.5:1","description":"\u003cp\u003e+.010in. Dome Top Pistons with 9.5:1 Compression Ratio. Fits Big Twin 1984-1999.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51065103483199,"sku":"ROKB920.010","price":564.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB920.010_1_1.jpg?v=1753947132"},{"product_id":"rokb-prj100-3-keith-black-pistons-replacement-spiral-lock-tcam","title":"Keith Black Pistons Replacement Piston Pin Spiral Lock. Fits Kb Twin Cam Pistons.","description":"\u003cp\u003eReplacement Piston Pin Spiral Lock. Fits KB Twin Cam Pistons. Spiral Retaining Ring Installation Tips:\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51067527430463,"sku":"ROKB-PRJ100-3","price":7.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB-PRJ100-3_1_1.jpg?v=1754035910"},{"product_id":"rokb297-030-keith-black-pistons-pistons-bt78-84-030-8-31","title":"+.030in. Dome Top Pistons with 8.3:1 Compression Ratio. Fits Big Twin 1978-1984 with 1340cc Shovel Engine. - Keith Black Pistons","description":"\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Bore = 3.528\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Stroke = 4.250\"\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Hypereutectic Alloy is a cast 16% silicon content material.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Perfect for air cooled engines.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Low thermal expansion rate = tighter piston-to-cylinder clearance.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Complete kit includes: two pistons, rings, wrist pins and clips.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Replaces OEM # 21993-80\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTech Tips:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* 8.3:1 Compression Ratio with 117cc Head Chamber Volume.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Follow Ring End Gap \u0026amp; Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Pull the engine down first \u0026amp; measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders \u0026amp; required pistons.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51067531821375,"sku":"ROKB297.030","price":460.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB297.030_1_1.jpg?v=1754035904"},{"product_id":"rokb576lca-std-keith-black-pistons-pistons-m817up-107ci124ci-std","title":"Std Pistons with 11.4:1 Compression Ratio. Fits Milwaukee-Eight 2017up with Big Bore 107ci to 124ci 4.250in. Cylinders. - Keith Black Pistons","description":"\u003cp\u003eFeatures \u0026amp; Benefits:- \u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Super Duty KB Forged Coated Anodized Piston Kit.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* 107ci to Big bore 124\" piston kit for Milwaukee 8 when using 4.250\" Bore Cylinders\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* No head modification required \u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Anodized top ring groove and crown.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Line2Line abradable skirt coating applied to .003\" total thickness for a Zero initial fit to allow coating to hone in for a tight quiet running clearance.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Round Wire Locks.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Premium Hastings 1.5mm 1.5mm 3.0mm Steel Nitride top ring with a Ductile Napier second.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Forced wrist pin oiling\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Complete kit includes: two pistons, rings, wrist pins and clips.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTech Tips:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Suggested additional purchase - top end gasket kit # CG-C10223\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Follow Ring End Gap \u0026amp; Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* The 4.250\" bore will net 124\" with a 11.4:1 compression ratio with a stock cylinder head.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Valve Pockets designed to accept up to a +4mm oversized intake and exhaust valves.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Requires Daytona \"Drop-in\" 4.250\" bore cylinders #DAY-80660\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* No Case machining required.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Pull the engine down first \u0026amp; measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders \u0026amp; required pistons.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51067534803263,"sku":"ROKB576LCA.STD","price":485.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB576LCA.STD_1.jpg?v=1754035900"},{"product_id":"rokb596lca-std-keith-black-pistons-pistons-m817up-114117ci128cistd","title":"Std Pistons with 11.7:1 Compression Ratio. Fits Milwaukee-Eight 2017up with Big Bore 114 or 117ci to 128ci 4.250in. Cylinders. - Keith Black Pistons","description":"\u003cp\u003eFeatures \u0026amp; Benefits:- \u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Super Duty KB Forged Coated Anodized Piston Kit.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* 114 or 117ci to Big bore 128\" piston kit for Milwaukee 8 when using 4.250\" Bore Cylinders\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* No head modification required.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Anodized top ring groove and crown.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Line2Line abradable skirt coating applied to .003\" total thickness for a Zero initial fit to allow coating to hone in for a tight quiet running clearance.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Round Wire Locks.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Premium Hastings 1.5mm 1.5mm 3.0mm Steel Nitride top ring with a Ductile Napier second.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Forced wrist pin oiling\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Complete kit includes: two pistons, rings, wrist pins and clips.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTech Tips:-\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Suggested additional purchase - top end gasket kit # CG-C10223\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Follow Ring End Gap \u0026amp; Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* The 4.250\" bore will net 128\" with a 11.7:1 compression ratio with a stock cylinder head.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Valve Pockets designed to accept up to a +4mm oversized intake and exhaust valves.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Requires Daytona \"Drop-in\" 4.250\" bore cylinders #DAY-80660\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* No Case machining required.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Pull the engine down first \u0026amp; measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders \u0026amp; required pistons.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51067535687999,"sku":"ROKB596LCA.STD","price":834.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB596LCA.STD_1_1.jpg?v=1754035899"},{"product_id":"rokb915c-std-keith-black-pistons-pistons-tcam07-17-110ci-std","title":"Keith Black Pistons Std Flat Top Pistons With 9.6:1 Compression Ratio. Fits Cvo Twin Cam 2007-2017 With 110Ci Engine \u0026 'S' Models With 110Ci Engines.","description":"\u003cp\u003eStd Flat Top Pistons with 9.6:1 Compression Ratio. Fits CVO Twin Cam 2007-2017 with 110ci Engine \u0026amp; S Models with 110ci Engines.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51067537293631,"sku":"ROKB915C.STD","price":569.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB915C.STD_1_1.jpg?v=1754035894"},{"product_id":"rokb921-020-keith-black-pistons-pistons-bt84-99-020-10-51","title":"Keith Black Pistons PISTONS BT84-99 +.020 10.5:1","description":"\u003cp\u003e+.020in. Dome Top Pistons with 10.5:1 Compression Ratio. Fits Big Twin 1984-1999.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51067538243903,"sku":"ROKB921.020","price":564.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB921.020_1_1.jpg?v=1752293265"},{"product_id":"rokb921-010-keith-black-pistons-pistons-bt84-99-010-10-51","title":"Keith Black Pistons PISTONS BT84-99 +.010 10.5:1","description":"\u003cp\u003e+.010in. Dome Top Pistons with 10.5:1 Compression Ratio. Fits Big Twin 1984-1999.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51067538309439,"sku":"ROKB921.010","price":564.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB921.010_1_1.jpg?v=1752293264"},{"product_id":"rokb-br8894-keith-black-pistons-replacement-lock-m8-kb-pistons","title":"Keith Black Pistons Replacement Piston Pin Lock. Fits Kb Milwaukee-Eight Pistons.","description":"\u003cp\u003eReplacement Piston Pin Lock. Fits KB Milwaukee-Eight Pistons.  Sold Each.\u003c\/p\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51071738347839,"sku":"ROKB-BR8894","price":7.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB-BR8894_1.jpg?v=1756542342"},{"product_id":"rokb-25002-std-keith-black-pistons-replacement-ring-set","title":"Keith Black Pistons REPLACEMENT RING SET","description":"\u003cp\u003eMaintain optimal engine performance with this replacement piston ring set from Keith Black. Designed for select Keith Black pistons, these rings provide a precise fit and reliable sealing for consistent power and efficiency.\u003c\/p\u003e\n\u003ch3\u003eFEATURES\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eReplacement piston ring set for select Keith Black pistons\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnsures proper sealing and compression\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintains engine performance and efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-quality construction for durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDETAILS\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturer: Keith Black\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePart No: REPLACEMENT RING SET\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with select Keith Black pistons\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keith Black Pistons","offers":[{"title":"Default Title","offer_id":51071738544447,"sku":"ROKB-25002.STD","price":130.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2320\/3647\/files\/ROKB-25002.STD_1.jpg?v=1756542341"}],"url":"https:\/\/joerascalharley.com.au\/collections\/keith-black-pistons.oembed","provider":"Joe Rascal Harley","version":"1.0","type":"link"}