Boyesen Power Reed Dualstage Yamaha Tdr125, Tzr125 91-4 Rocs Pro limiting rotation to 90 degrees

limiting rotation to 90 degrees and preventing damage from excessive movement

silicone-free lubricant

FX450 17-25

Extended Wear™ Interior

Kawasaki and Yamaha off-road motorcycles

Boyesen Power Reed Dualstage Yamaha Tdr125, Tzr125 91-4 Rocs Pro limiting rotation to 90 degreesOne 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.