Engine

WE RACE ON THE TRACK, NOT THE DYNO! Most camshaft designs are developed only on a dyno. Good camshaft designs not only increase power, they also improve throttle response. However, more power and better throttle response is a difficult design problem...

ForgedPrecision machinedCompatible with OEM keepers and retainersDesigned and manufactured to meet or exceed OEM specs and standards

Silent chainExclusive heat-treatment of link creates excellent friction and impact resistanceEngineered to exceed OEM specifications and tolerances

The Dirt Tricks Timing Chain Tensioner resolves issues with a slack timing chain on the new 4-stroke motors. The 2008 and newer four-strokes use a timing chain tensioning device intended to develop its force using the engine oil pressure hydraulically...

Note: this does not come with the mechanical water pump seal

Note: this does not come with the mechanical water pump seal

CYLINDER KITS INCLUDE A NICKEL CARBIDE COATED CYLINDER PORTED TO FACTORY SPECS., SPECIAL HARD ANODIZED EXHAUST VALVES, COMPLETE PISTON KIT AND A TOP END GASKET SETCYLINDER KITS INCLUDE ALL PARTS IN THE KITS PLUS AN ALUMINUM CYLINDER HEAD WITH REMOVABLE...

Feature Koyo and Nachi precision Japanese crank bearingsThe crankshaft seals feature a carbon/fluorocarbon pad on the seal lip and stainless steel garter springsReduces startup friction enhancing dry start performance and reducing crank pin wear

CNC machined oil filler cap or with aluminum oil dipstickLaser printed ZETA logo

CNC machined from 6061 T-6 aluminumReplaces the stock plastic plugSealing O-ring includedLaser Engraved WC logoMade in the USA

6061 T-6 Aluminum with an anodized finish and O-ring sealMachined from billet aluminum, guaranteed to add a ‘Factory’ look to your bikeMade in USASimple positive installation with an Allen wrenchReplaces the stock plugsPolished to a mirror finish prior...

Includes inner clutch cover gasket, water pump cover gasket and all bearings, seals and washers required to rebuild water pumpMechanical seal included!Meets or exceeds OEM quality