Boyesen Power Reed Dualstage Gilera/Aprilia 50Cc GPX 2.5 250-300RR 2T 20-23

250-300RR 2T 20-23

RFX Pro Series Armalite Rear Sprocket Yamaha YZ125-250 YZF250-450 99-23

6mm (Black) KTM Bend

· Yamaha TTR125 2011

Boyesen Power Reed Dualstage Gilera/Aprilia 50Cc GPX 2.5 250-300RR 2T 20-23One 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.