Boyesen Power Reed Dualstage Polaris 90Cc Hazardous KTM EXC-F front

KTM EXC-F front

· Yamaha TTR250 2006

TM MX300 98-00 rear

Stretchnet zones on the full back of the lower legs deliver superior airflow

XE/XX 125 21-23

Boyesen Power Reed Dualstage Polaris 90Cc Hazardous KTM EXC-F frontOne 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.