Manufactured from the best materials with a special self-cleaning design, and hand-finished to perfectionComputer designed to achieve ultimate strength at minimum weightJT combines leading-edge technology with the top materials to produce the ultimate quality sprocket range with unbearable valueEvery sprocket meets or exceeds the highest possible quality standardsSprockets are heat-treated and beadblasted to reduce material surface tensionSteel rear sprockets are made with top-quality Japanese C45 high carbon steel