The JT Sprockets Twinstar hybrid rear sprocket combines long-wearing steel teeth with a lightweight 7075‑T6 Ergal aluminum core for race-ready performance. Designed to deliver efficient power transfer with reduced rotating mass.
The JT Sprockets Twinstar Steel/Aluminum Hybrid Sprocket is built for riders who want the durability of steel without the weight penalty of an all-steel sprocket. By pairing a heat-induction hardened, high-carbon steel outer ring with a lightweight aviation-grade 7075‑T6 (Ergal) aluminum core, it delivers strong, consistent power transfer and extended service life—ideal for demanding off-road use.
This hybrid construction helps reduce rotating mass compared to full-steel options, improving throttle response while keeping the wear surface extremely tough. Precision laser cutting and CNC machining ensure accurate fitment and a high-quality finish for reliable performance ride after ride.
