Seller notes

S3 Extreme cylinderhead for the RIEJU MR300. High quality part from the hard enduro specialists from Spain. Ultra-trick looking part. This is the 'extreme' head: Modifies the compression for a smooth and progressive delivery of power. Improving traction and engine control especially important in technical areas. Its design manages to lower the temperature by eliminating the typical hot spots of the original cylinder heads. Ideal for extreme style riding, improving the throttle feeling. You will ...

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