Boyesen 2 stage power reeds for motorcycles using the Rotax 123 engine.

Boyesen reeds feature a 2 stage design, the upper petals work at lower engine speeds and the lower reeds come into play at higher engine speeds.

Airflow is improved and air velocity is improved which results in increased power throughout the rev range.

64.5mm wide x 51mm high.

Fitment:
Aprilia RS125
Aprilia RX125
Aprilia MX125
Aprilia Red Rose

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