JT SPROCKETS Sprocket Rear Yamaha 42-Tooth JTR857.42

Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality standards for the motorcycle industry, Sprockets are heat-treated and bead blasted to reduce material surface tension, Made with top-quality-grade C45 high-carbon steel