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Ships within 48 hours · Estimated delivery Aug 27 - Sep 1
top-end gaskets and pin bearing (for two-strokes) when the time comes
Durable smooth rolling rollerblade style wheels
Engagement curve designs updated to better match modern motorcycle engine characteristics
Improved clutch modulation
New Vforce4Ri features:
BOYESEN Rad membraan systeem - Yamaha YZ250 top-end gaskets and pin bearingBoyesen engineers have applied a range of technical innovations to their range of intake systems to ensure optimal power, torque and smoothness: Aerodynamic Surface Optimization, Model Specific Reed Petal Tensioning (specific valve for each model) , Material Fuel Resistance (materials resistant to hydrocarbons) and Multi Stage Reed Timing (valves that open in stages). The BOYESEN valve diaphragms have been specially developed for each engine model
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