Boyesen Power Reed Dualstage Aprilia Rs/Rx125 Extreme/Sport/Replica 72-19 GPX 2.5 15º and 20º for ACL

15º and 20º for ACL injury

enhancing the rider’s experience and confidence

Yamaha YZ125 90-95 rear

Affordable replacement choice for hobby motocross and competition

Compatible with and without a neck brace and passes the new 2018 FIM regulations

Boyesen Power Reed Dualstage Aprilia Rs/Rx125 Extreme/Sport/Replica 72-19 GPX 2.5 15º and 20º for ACLOne 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.