Boyesen Power Reed Dualstage Yamaha Yz/Ty/Dt/Mx50-80 74-90, Yz250/Ty175 X-Frame · KTM 380SX 2002

· KTM 380SX 2002

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RFX Pro Res Cap Kit (Blue) KTM SX65 04-11 SX85 03-12 (Brembo Brake and Magura Clutch)

head and brain and the absorption of energy upon impact at concussion level

Boyesen Power Reed Dualstage Yamaha Yz/Ty/Dt/Mx50-80 74-90, Yz250/Ty175 X-Frame · KTM 380SX 2002One 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.