Shop Who we areConditions of sale Withdrawal and privacyPick & pay Resistance and reliability higher than the original Increment of the performance of your motorcycle Boyesen disc packs are developed in collaboration with the best teams in the world such as for YAMAHA Factory, Pro Circuit, for KAWASAKI Factory Europe, for KTM Factory and some of the best riders ever such as Jeremy McGrath. These valves are manufactured with a redesigned one-piece cast aluminum housing with Boyesen Pro Series blades applied. This feature allows to obtain a decidedly more homogeneous flow in the intake phase which is directed much more directly into the combustion chamber. The kit is supplied ready to install and no modifications to the engine are necessary. 2017 © Brixia Moto Srl CF and PI-IT-030580309.
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