Boyesen Power Reed Dualstage Yamaha Tdr125, Tzr125 91-4 Subzero With a rigid outer frame

With a rigid outer frame

Beta 250/300 RR 14-18

AVIATOR 3 SPIN YELLOW/BLUE GLOSS

Xtrig PHDS Rubber Bar Mount Kit M12 (Optional Sizes) Xtrig Clamp Fitment

DT-1 has been manufacturing air-filters for over 30 years and is the choice of todays top professionals

Boyesen Power Reed Dualstage Yamaha Tdr125, Tzr125 91-4 Subzero With a rigid outer frameOne 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.