Engine

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

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 engine plugsReplaces stock plugs to give a factory bike lookLaser printed ZETA logo

CNC machined front sprocket cover.Designed to keep mud out of the front sprocket areaMade of A7009-T6 aluminum.

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

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...

Forged one piece valves for unmatched strengthCVD/CNI coated to reduce heat and frictionManufactured to exacting tolerances from highest grade materialAll valves sold each

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

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

CNC machined from billet aluminumReplaces factory automatic/hydraulic tensionerStops out of timing issues and timing chain rattling caused by automatic tensioner failureEliminate timing chain over-tension/premature engine wear caused by hydraulic...

Latest addition to the ProX program is the Steel Intake and Exhaust Valve & Spring Kits. This kit is offered as an alternative where the OEM application uses Titanium valves. ProX has now developed the Steel Intake and Exhaust Valve & Spring Kits,...