Getting better clutch performance with the SMR Factory (Sex Machine Racing) 3pc 20% Heavy Duty Clutch Springs for Kawasaki Ninja 400! Stiffer clutch springs would put more pressure on the clutch discs and plates, in turn, would reduce clutch slippage! Will work with OEM or performance clutch discs and plates!
⚠ WARNING: California Proposition 65 www.P65Warnings.ca.gov.
