Street Bike Breather Kits and Parts

Proper crankcase ventilation is critical for engine longevity and performance—excessive blow-by pressure can compromise seals, contaminate oil, and reduce horsepower. The MIKUNI Breather Kit for HSR Series 42/45 carburetors eliminates these issues with a...

A properly functioning breather system is critical for engine longevity and reliable performance, especially in high-revving applications where crankcase pressure can compromise seals and gaskets. The MIKUNI KHS-020 breather kit eliminates excess...