Boyesen Power Reed Dualstage Yamaha Rd250/350/400 Cheek Pads CR500 89-01

CR500 89-01

350 Fi All

· Yamaha YZ125 / YZ250 2000

Blue anodized spinner with laser engraved Motion Pro logo

Boyesen Power Reed Dualstage Yamaha Rd250/350/400 Cheek Pads CR500 89-01One 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.