This is a reed valve inclined riser/spacer for Minarelli Horizontal 50 cc engine, tilted 16 degrees towards the cylinder.
Essential for big bore engines (70+ cc), allows a bigger volume in the crankcase, while orienting the reed valve straight towards the transfers. In doing so, it substantially increases the fresh mix flow to the engine, allowing it to express the best performance possible.
Attention: the extreme tilt of this spacer may require crankcase and/or reed valve modifications. The mod must combine with a high-end complete tuning of the engine, working at very high rpm. NOT recommended for first-stage tuning!
3DOMINION IS AN ITALIAN QUALITY WORKSHOP, ONLY USING HIGH PERFORMANCE TECHNOPOLYMERS. OUR MATERIALS CAN WITHSTAND GAS, DIESEL FUEL, OIL, SEALANTS, AND CONTINUOUS TEMPERATURE UP TO 100 °C. EXTREMELY LIGHT, WEIGHS LESS THAN HALF THAN ALUMINUM!
The internal dimensions allow for oversized valves mounting (Malossi VL14, Polini Big Valve, etc.). Color may vary.
We can build risers and spacers in many sizes, shapes and colors! Contact us to find out more!