JT Sprockets JT is by far the biggest manufacturer of aftermarket sprockets in the world; accounting for 60% of all sprockets sold across the world. Over 40 years in business they have forged an excellent reputation for high quality products at affordable prices. Front sprockets are made from extremely strong SCM420 chromoly steel alloy, and the rear sprockets are made from ultra-durable high carbon C49 steel. The end result is high quality, hard wearing sprockets Who are we? We are a well known and long established UK based motorcycle parts supplier with an excellent reputation for delivering high quality motorcycle parts, backed by industry leading customer service.
