{"product_id":"keith-black-kb912c-std-kb-107-inch-twin-cam-forged-piston-set","title":"Keith Black KB912C.STD KB 107-Inch Twin Cam Forged Piston Set","description":"Forged piston set has a compression ratio of 10.5:1 and is for a stock stroke. Set includes rings  circlips and pins.\n\u003cp\u003eThe Keith Black KB912C.STD KB 107-Inch Twin Cam Forged Piston Set is designed for listed Harley-Davidson Twin Cam applications. The piston measures 4.125 inches when used with the stock stroke and has a stated weight of 651 grams. This kit is identified by vendor Keith Black and part number KB912C.STD.\u003c\/p\u003e\u003cp\u003eFitment includes 1999–2006 Harley-Davidson FXST models and 1999–2000 Harley-Davidson FLST models. Verify the listed model, year, engine configuration, and piston specifications before installation to ensure proper application.\u003c\/p\u003e\u003cp\u003eFor break-in, run the engine at moderate speeds for at least 500 miles while avoiding excessive running in lower gears to properly break in the new pistons and rings. The product data identifies the unit of measure as a kit and the country of origin as the USA. Installation guidance is referenced in the Keith Black piston fitment instructions.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand and Part Number: Keith Black KB912C.STD\u003c\/li\u003e\n\u003cli\u003eProduct Type: KB 107-Inch Twin Cam forged piston set\u003c\/li\u003e\n\u003cli\u003ePiston Measurement: 4.125 inches utilizing stock stroke\u003c\/li\u003e\n\u003cli\u003eWeight: 651 grams\u003c\/li\u003e\n\u003cli\u003eUnit of Measure: Kit\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: USA\u003c\/li\u003e\n\u003cli\u003eFitment: 1999–2006 Harley-Davidson FXST and 1999–2000 Harley-Davidson FLST models\u003c\/li\u003e\n\u003cli\u003eBreak-In Guidance: Run the engine at moderate speeds for at least 500 miles and avoid excessive running in lower gears\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nHarley Davidson FLST 1999\u003cbr\u003e\nHarley Davidson FLST 2000\u003cbr\u003e\nHarley Davidson FLST 2001\u003cbr\u003e\nHarley Davidson FLST 2002\u003cbr\u003e\nHarley Davidson FLST 2003\u003cbr\u003e\nHarley Davidson FLST 2004\u003cbr\u003e\nHarley Davidson FLST 2005\u003cbr\u003e\nHarley Davidson FLST 2006\u003cbr\u003e\nHarley Davidson FLT 1999\u003cbr\u003e\nHarley Davidson FLT 2000\u003cbr\u003e\nHarley Davidson FLT 2001\u003cbr\u003e\nHarley Davidson FLT 2002\u003cbr\u003e\nHarley Davidson FLT 2003\u003cbr\u003e\nHarley Davidson FLT 2004\u003cbr\u003e\nHarley Davidson FLT 2005\u003cbr\u003e\nHarley Davidson FLT 2006\u003cbr\u003e\nHarley Davidson FXD 1999\u003cbr\u003e\nHarley Davidson FXD 2000\u003cbr\u003e\nHarley Davidson FXD 2001\u003cbr\u003e\nHarley Davidson FXD 2002\u003cbr\u003e\nHarley Davidson FXD 2003\u003cbr\u003e\nHarley Davidson FXD 2004\u003cbr\u003e\nHarley Davidson FXD 2005\u003cbr\u003e\nHarley Davidson FXD 2006\u003cbr\u003e\nHarley Davidson FXST 1999\u003cbr\u003e\nHarley Davidson FXST 2000\u003cbr\u003e\nHarley Davidson FXST 2001\u003cbr\u003e\nHarley Davidson FXST 2002\u003cbr\u003e\nHarley Davidson FXST 2003\u003cbr\u003e\nHarley Davidson FXST 2004\u003cbr\u003e\nHarley Davidson FXST 2005\u003cbr\u003e\nHarley Davidson FXST 2006\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eUOM: KIT\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCountry Of Origin: USA\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\nSuggested Items:\n11-0291 - 107 inch Twin Cam Piston Ring Set Standard\r\n11-0856 - Piston Wrist Pin Lock\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\nAccessory Items:\n16-0622 - Ring-O-Matic Ring Compressor Tool Kit\r\n60-0167\r\n16-0075 - Wrist Pin Ring Tool\r\n15-1375 - Cometic Top End Gasket Kit\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eTech Notes: Piston measures 4.125 inches utilizing stock stroke\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eMeasurement: Weight: 651 Grams\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Keith Black","offers":[{"title":"Default Title","offer_id":68363847893177,"sku":"11-0287","price":415.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0775\/0179\/2441\/files\/11-0287a.jpg?v=1794572457","url":"https:\/\/www.thespeedshopusa.com\/products\/keith-black-kb912c-std-kb-107-inch-twin-cam-forged-piston-set","provider":"THE SPEED SHOP USA","version":"1.0","type":"link"}