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FORGED BOTTOM END ADVANTAGEThe foundation of any bottom end rebuild is a solid forged crankshaft assembly, which provides strength and reliability far surpassing any cast part that lacks consistency. Forged crankshafts due to their lighter weight, more...

Cylinders:• Designed to match OEM in appearance and specifications.• Cast from AB4C aluminum with nikasil plated sleeves for excellent wear & durability.• AT-09477 & AT-09478 require no case modification when installing.

Carefully developed for the highest level of qualityUnsurpassed in functionality and reliabilityReady to serve reliably for years to come Top-End Repair Kit (NA-50091-BK) by Namura Technologies Inc.®. Piston size: 92.96 mm. Oversize: +0.01. Quality...

ATV/UTV VALVE SPRING KIT• Created from premium, Japanese spring steel, these springs will allow the trouble-free use of more demanding, higher performance cams• Includes valve springs, base washers, and retainersIncludes valve springs, base washers, and...

All new assembly sold complete with Hot Rods connecting rodFactory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performanceReady for installationCrankshaft is completely rebuildable with genuine Hot Rods...

All new assembly sold complete with Hot Rods connecting rodFactory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performanceReady for installationCrankshaft is completely rebuildable with genuine Hot Rods...

All new assembly sold complete with Hot Rods connecting rodFactory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performanceReady for installationCrankshaft is completely rebuildable with genuine Hot Rods...

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 2004 - 2005 Honda TRX 450ER2004 - 2005 Honda TRX 450R

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 2004 - 2005 Yamaha YFZ 450

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 1988 - 2006 Yamaha Blaster 200

Stage 3: single-cam motor - Significantly more top-end power than Stage 2Will work well for Supermoto and big bore/strokersUses stock auto-decompression mechanism. Uses stock valve springs

Proven "chevron" style tread pattern, designed to deliver unparalleled forward tractionLug height is graduated, starting at 1.5" at center growing to 2" at the shoulder and the resulting paddle-like shoulder configuration provides maximum side bit for...