Replacement Piston and Rings - 170cc/63mm Big Bore Kit - KLX140/L/G axle CNC machined 6061 billet aluminum

CNC machined 6061 billet aluminum with textured black powder coating

port matched intake

The bolt spacing is 58mm center to center for use with our TB Parts manifolds

Flywheel Removal Tool

Replacement Piston and Rings - 170cc/63mm Big Bore Kit - KLX140/L/G axle CNC machined 6061 billet aluminumReplacement Piston and Rings for the BRT 170cc 63mm Big Bore Kit KLX140 L G High Compression Cast Piston This is a brand new 63mm cast piston used on the BRT big bore kits for KLX140 L G 2008 Current Includes: Wrist Pin Rings Clips and 63mm Cast piston Piston pin is 14mm We also have performance CDI's to increase rpm limiter, bigger carburetors, high compression piston kits, racing exhausts, custom stroker crankshaft, etc.