Renthal 7/8" handlebars re-wrote history when they became the first aftermarket aluminum handlebar to be fitted as O.E.M. on a Japanese motocross motorcycle. All Honda CR/CRF and Kawasaki KX/KXF models (except minis) are fitted with a Renthal 7/8" handlebar as original equipment. The exclusive aluminum alloy and the advanced manufacturing processes Renthal uses result in a handlebar which is more than capable of withstanding the extreme rigors of motocross and supercross riding and racing. 7/8" (22 mm) external diameter to fit most standard-sized clamps and controls. 7010 T6 aluminum - which Renthal has exclusive rights to - is a specially developed alloy for the manufacture of handlebars. Oversize tubing is machined down to 7/8" to ensure a perfect, consistent diameter. High impact strength, lightweight and excellent vibration dampening. Shot peened surface finish to help prevent fatigue failure.