Forged Piston and Ring Set for BRT 66mm / +6 Crank / 34/29 Head ASS-GD-0590 simultaneous installation with the three-dimensional

simultaneous installation with the three-dimensional shape manifold enables smooth inhalation effect from the carburetor to the combustion chamber without resistance

High quality O-ring chain seals in lube and keeps water and mud out

Larger Exhaust Cut Out

Aluminum machined screw that allows quick adjustment at your fingertips

Gives a "Factory Race Bike Look" and comes complete with anodized filler cap

Forged Piston and Ring Set for BRT 66mm / +6 Crank / 34/29 Head ASS-GD-0590 simultaneous installation with the three-dimensionalBRT Replacement 66mm Forged Piston and Ring Set KLX140 Please Select Compression Ratio from drop down. (14: 1 Compression ratio can ONLY be used with high octane race fuels) This is a brand new 66mm forged piston and ring set used on the BRT big bore kits w 34 29 head and +6mm Cranks. Does not work with any other combo. Includes: Wrist Pin Rings Clips and 66mm Forged Piston Piston pin is 14mm We also have performance CDI's to increase rpm limiter,