Boyesen Power Reed Trial Sherco 2T St125 10-15, St200 10-14 Backpacks Fitments: YAMAHA 1991-1992 YZ125/YZ250

Fitments: YAMAHA 1991-1992 YZ125/YZ250

UFO Chain Guide (Black) Gas Gas MC85 21-24

KTM 250 XC-W 11-13

Soft neck shoulder straps increase comfort while riding and will not scratch helmet exterior

Boyesen Power Reed Trial Sherco 2T St125 10-15, St200 10-14 Backpacks Fitments: YAMAHA 1991-1992 YZ125/YZ250One 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.