Boyesen Power Reed Dualstage Yamaha Rd250/350/400 Cheek Pads Axle holder holds one side

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

as well as standard Allen's at one end of the T-handle

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

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

Boyesen Power Reed Dualstage Yamaha Rd250/350/400 Cheek Pads Axle holder holds one sideOne 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.