Boyesen Power Reed Dualstage Yamaha Tdr250, Tzr250 -90 motocross grips The M1 tank bag is

The M1 tank bag is a fixed 8L volume tank bag

Stock color match

Lighter than stock oil filter covers

flexible and resistant than OEM parts

Boyesen Power Reed Dualstage Yamaha Tdr250, Tzr250 -90 motocross grips The M1 tank bag isOne 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.