Boyesen Power Reed Dualstage Yamaha Yz125 01-02 new drop FC250-450 19-22

FC250-450 19-22

UFO Chain Guide Slider (Black) CRF250 14-24 CRF450 13-16

TE125 14-16

Fitments: YAMAHA 2014-2018 YZ250F

300 EXC 14-18

Boyesen Power Reed Dualstage Yamaha Yz125 01-02 new drop FC250-450 19-22One 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.