BOYESEN PRO-139 BOYESEN REED CARB psr-139, Boyesen Pro Series Reeds - PRO, BR010139 Keychain YZ250 22-25

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BOYESEN PRO-139 BOYESEN REED CARB psr-139, Boyesen Pro Series Reeds - PRO, BR010139 Keychain YZ250 22-25Boyesen Pro Series Reeds PRO 139 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