Boyesen Power Reed Dualstage Yamaha Rd250/350/400 Cheek Pads The MX24 Techstar Jersey provides

The MX24 Techstar Jersey provides excellent performance and increased durability

Designed to be worn with Alpinestars’ range of off-road boots

CR500 89-01

Axle holder holds one side so that this can be tightened with one spanner

The ATV Track Pack 98-piece kit has factory style bolts

Boyesen Power Reed Dualstage Yamaha Rd250/350/400 Cheek Pads The MX24 Techstar Jersey providesOne reed petal is NOT enough! Boyesen's revolutionary dual stage reed design delivers more usable power than stock. Stock single stage reeds operate most effectively within a relatively narrow RPM range and are limited because of the single stage design. Boyesen's one soft reed on top of one firm flow through reed gives you a wide range of intake control, plus increased intake velocity. Your original reeds can't possibly duplicate that performance.