RIVA Superstock Race Cylinders

Race legal, race proven cylinders provide a tremendous increase in horsepower for your Yamaha Engine. All models feature redesigned exhaust and transfer ports producing dramatic gains in bottom-end, mid-range and top speed. Requires minimum 103 octane race fuel.

GP1200R/1300R

Cylinders are resleeved with RIVA's hardened chrome-moly iron alloy racing sleeves and bored to 80mm. Porting and deck height are set up to run with our flat top racing pistons (RY1000-66V-80). Includes RIVA Gas Operated Powervalve and base gasket port matched to cylinder.

SuperJet

Cylinders are resleeved with RIVA's hardened big bore racing sleeves and bored to 85.5mm increasing displacement and torque. Porting and deck height are set up to run with our flst top racing pistons (RY-1000-61X-85.5). Includes matched copper base gasket.