GUTS - Yamaha YZ 250F/450F Seat Foam ('03-'09) brake The upper roller has the

The upper roller has the patented Powerlip to keep chain in aligned

CNC machined from a solid block of 6061 Billet Aluminum for superior protection with minimal weight gain

This design has improved chain angle

Does not inhibit frame flex

GUTS - Yamaha YZ 250F/450F Seat Foam ('03-'09) brake The upper roller has theAbout GUTS Racing Products: Established in 1985 as a premiere off highway seat manufacturing company offering: High performance seat covers and foams for motocross supercross and off road competition Durable, long lasting seat covers for off highway motorcycles, including dual sport bikes and ATV Features: Quality seat foam injection molded to fit the stock plastic seat base. Tall height is 1 inch taller than stock