Product Description
RPM TORQUE COMPRESSION SPRING
&
RPM CLUTCH SPRING
FOR 50cc - 100cc QMB139 MOTORS
THE TORQUE SPRING KEEPS YOU IN A LOWER GEAR RATIO LONGER,
BUT STILL ALLOWS YOU TO REACH YOUR ORIGINAL TOP END
THE CLUTCH SPRINGS KEEP YOUR CLUTCH FROM ENGAGING UNTIL YOU REACH HIGHER RPM'S, WHICH IMPROVES ACCELERATION OFF THE LINE
