JT Sprockets JTX210.45GR TwinStar Steel/Aluminum Hybrid Rear Sprocket Gray 45-Tooth

The JT Sprockets JTX210.45GR TwinStar is a 45-tooth, gray steel/aluminum hybrid rear sprocket engineered to deliver the ideal balance of light weight and long-lasting durability. As a bi-metal sprocket, it combines the best properties of two materials into a single high-performance component for motorcycles and ATVs.

Key Features:

• Aviation-grade Ergal 7075-T6 aluminum core — precision laser-cut and CNC-machined for a lightweight, strong foundation
• Heat-induction hardened steel outer ring — lasts up to six times longer than a standard 7075-T6 aluminum sprocket
• Fully heat treated for superior wear resistance
• Meets or exceeds Japanese OEM standards for fit and performance
• Optimized design for the best combination of light weight and structural strength
• Gray anodized finish for a clean, corrosion-resistant appearance
• 45-tooth count for tuned drive ratio performance

The JTX210.45GR was validated through an extensive testing program that included top-level Motocross competition and the 2020 Dakar Rally — among the most demanding proving grounds in motorsport. JT Sprockets has been the world's leading aftermarket sprocket manufacturer for over 30 years, and the TwinStar line represents the pinnacle of that expertise.