Boyesen Power Reed Dualstage Yamaha Yz/Ty/Dt/Mx50-80 74-90, Yz250/Ty175 X-Frame UFO Radiator Covers (Blue) Yamaha

UFO Radiator Covers (Blue) Yamaha WRF250/450 03-04

RFX Pro Res Cap Kit (Blue) KTM SX65 04-11 SX85 03-12 (Brembo Brake and Magura Clutch)

HONDA CR STEEL FRAME

UFO Rear Fender (White) Honda CR125/250 02-07

RFX Pro Series Kickstart Lever (Hard anodised - Black) KTM SX85 03-17

Boyesen Power Reed Dualstage Yamaha Yz/Ty/Dt/Mx50-80 74-90, Yz250/Ty175 X-Frame UFO Radiator Covers (Blue) YamahaOne 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.