Boyesen Power Reed Dualstage Yamaha Rd125Lc GPX 3.5 5 X-Flow jacket is super

5 X-Flow jacket is super ventilated

Honda CRF250R 04-23 rear

UFO Chain Guide (Black) Yamaha YZ65 19-24 YZ85 19-24

repack cartridge

KTM 350 SX-F 2011-2012

Boyesen Power Reed Dualstage Yamaha Rd125Lc GPX 3.5 5 X-Flow jacket is superOne 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.