Give your nitro truck stronger and more consistent clutch performance with the Traxxas 4146X Clutch Shoes/Spring set, a reinforced replacement clutch shoe and spring combo designed to improve engagement and throttle response under load. This clutch shoe and spring set is compatible with Traxxas nitro‑powered models that use this style of clutch system—such as the Traxxas Revo and T‑Maxx—helping restore solid power transfer and smoother acceleration after wear or damage. Easy to install and built for durability, it’s a dependable maintenance or upgrade part to keep your nitro ride running strong and responsive on every session.