Rear Sprocket SteelJT Steel Sprockets are manufactured using only the finest grade of C49 high carbon steel for the rear sprocketsComputer-designed to achieve ultimate strength at minimum weightJT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable valueEvery sprocket meets or exceeds the highest possible quality standards for the motorcycle industrySprockets are heat-treated and bead blasted to reduce material surface tensionThe JT Steel Sprockets range now contains over 2,500 parts for all motorcycles and ATVs.