JT Sprockets Twinstar rear drive sprocket built to deliver long wear life with lower rotating weight. Computer-designed and heat-treated for strength, with a premium steel/aluminum twin-ring construction.
Built for durability without unnecessary weight. The JT Sprockets Twinstar rear sprocket is engineered to deliver excellent strength and wear resistance while keeping your drivetrain responsive. Thanks to its twin-material construction, it’s a smart upgrade for riders who want reliable performance in demanding motocross and enduro conditions.
Why it helps: rear sprockets take constant abuse from power, grit, mud and chain load. This Twinstar design uses a tough, wear-resistant steel outer ring where the chain contacts, paired with a lightweight aluminum inner ring to help reduce overall weight—supporting quicker acceleration feel and smoother handling.