JT Rear Sprocket Steel 42T for 520 Chain - JTR857.42

The JT Rear Sprocket Steel 42T for 520 chain is engineered for durability and high performance. Crafted exclusively from premium Japanese 545C high carbon steel, this sprocket ensures long-lasting wear resistance and reliable operation under demanding conditions. The heat treatment and hand finishing process meet or surpass OEM standards, providing a perfect fit and optimal functionality for your bike's drivetrain. Whether upgrading or replacing, this sprocket offers superior strength compared to mild steel or surface-hardened alternatives, lasting two to three times longer and reducing maintenance needs.

Features:

• Top quality at economical prices

• Made from premium Japanese 545C high carbon steel

• Heat treated and hand finished to meet or exceed OEM standards

• Outlasts mild steel or surface-hardened sprockets by two to three times

ATTRIBUTES:

BRAND: JT

MPN: JTR857.42