SuperSprox 525 Front Sprocket Yamaha R1 / R9 / Fz-09 / Fj-09 / Mt-09 / Mt-10 / Xsr900 / Tracer 900 Features: Real Factory Team specification parts from the company supplying real factory teams Ultra-hard surface layer (0.5mm) reduces friction to prevent power loss caused by chain drag Made from Scm-435 Carbon Free steel and impregnated to guarantee zero breaking risk and extended sprocket life Fully lightened with radial holes for off-road and street applications Note: Image is for reference only. Actual Front Sprocket will vary depending on your bike's make and model