YOSHIMURA RS-12 Signature Series Silenceur Gleaning everything they could from

Gleaning everything they could from its big brother on the prior year model CRF450

ProX Crankshaft Roller Bearing

Ultra-Lightweight

Adjustable waist belt for maximum fit and adjustability on the go

and UV-Protected

YOSHIMURA RS-12 Signature Series Silenceur Gleaning everything they could fromAfter over three years in development and testing the RS 12 is here! With all its details, the RS 12 takes the system to a new level: Improved performance gains, weight reduction and fit when compared to previous generation design Developed and tested in the heat of over 24 months of factory level racing Aggressive, intelligently designed, asymmetrical shaped RS 12 profile allows maximized muffler volume RS 12 systems utilize precision machined