Boyesen Pro Series membraamplaatjes Carbon Yamaha YZ 125 04

Get the edge of Boyesens patented dual-stage reed design plus the latest in carbon fiber technology

Carbon fiber top reed and a durable fiberglass/epoxy bottom reed

Features the quickest acceleration any reed can offer while maximizing horsepower and torque

Quick and precise response to changes in piston speed delivers smooth, dependable throttle response

You wont sacrifice reed life as you might with traditional carbon fiber reeds

Created for the newest 2-stroke technologies

A POWERFUL SOLUTION TO A SIMPLE PROBLEM

One reed petal is NOT enough! The reed petals in all 2 stroke machines take an incredible amount of abuse! At peak RPM, reed petals are opening and closing hundreds of times per second. Over time, a single reed loses its ability to regulate flow rates in proper proportions. This causes a loss of reed petal reaction and reduces the consistency of peak horsepower. 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. The dual-stage design allows you to replace your stock reed stop with a Rev-Plate which permits the reeds to open freely and function efficiently. The multi-port feature of the bottom reed creates more channels for the charge, delivering increased velocity to the intake ports and generating more overall power. Dual-stage reeds work in unison to perform efficiently throughout the entire powerband. The difference in stiffness between the top reed and the bottom reed allow the reeds to respond quickly and accurately to changes in engine pressure. This translates into quicker acceleration, crisper throttle response and increased horsepower throughout the powerband.

THE BOYESEN PRO SERIES REED ADVANTAGE

Boyesen Pro Series Reeds are more responsive than our traditional Power Reeds. The carbon-fiber top reed has an excellent response characteristic that provides even quicker acceleration, stronger throttle response, and more over-rev than our standard Power Reeds. The fiberglass bottom reed provides stability and longer reed life. The Pro Series Reeds are the most potent reed available, delivering improved power, torque and feel like no other after-market reed system on the market.