Boyesen Power Reed Dualstage Yamaha Tdr125, Tzr125 91-4 Rocs Pro RFX Pro Series Elite Rear

RFX Pro Series Elite Rear Sprocket Yamaha YZ125-250 YZF400 82-98 (Blue) Various Sizes

Suzuki RMZ450 05-23 rear

DOT+ECE from 1

silicone-free lubricant

Boyesen Power Reed Dualstage Yamaha Tdr125, Tzr125 91-4 Rocs Pro RFX Pro Series Elite RearOne 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.