Pro Circuit High Performance Clutch Springs For Yamaha YZ450F (05-09) | CSY06450 red After a month of testing

After a month of testing by official Yamaha Monster Racing Team MX1 riders

YOU MUST RUN KTM ROTORS**

Fits stock Suzuki & Ride Engineering Clamps

BBR high-performance camshaft

ergonomic design for comfort and performance fit

Pro Circuit High Performance Clutch Springs For Yamaha YZ450F (05-09) | CSY06450 red After a month of testingFits The Following Bikes: Yamaha YZ450F 2005 2009 Clutch Springs Description: Pro Circuit Clutch Springs will increase the clutch life, prevent clutch slipping, and has improved engagement over a stock setup for any rider. These high performance springs will help to keep engine temperature down. Riders will notice consistent spring performance throughout time, which is crucial in controlling how efficiently the clutch turns power into acceleration.