07-18 YAMAHA YZF-R6: CRG Carbon Clutch Lever (Shorty) The basis for high performance composites is continuous strand fibers. Realizing the incredible strength and performance possible with carbon fiber can only be achieved by tailoring the specific weave and direction of continuous strand fibers. CRG is the first and only constructor offering motorcycle brake and clutch levers with this technology. CRG has combined the unmatched structural performance of carbon fiber with their proprietary Raceline position adjustment mechanism. Raceline allows for precise static position adjustment of the lever preferred by pro racers.