JT Rear Sprocket Steel 45T | 520 Chain | JTR487.45

JT Rear Sprocket Steel 45T for 520 Chains

Upgrade your drivetrain with the JT Rear Sprocket Steel 45T (JTR487.45) — engineered for riders who demand durability and precision. Machined exclusively from premium Japanese 545C high carbon steel, this sprocket is heat-treated and hand-finished to meet or exceed OEM standards. It outlasts mild steel or surface-hardened sprockets by up to 3x, meaning fewer replacements and more time on the trail or track.

Whether you're replacing a worn sprocket or upgrading for competitive riding, the JTR487.45 delivers a perfect fit for 520 chain applications with smooth, reliable power transfer every ride.

Key Features

• Made exclusively from Japanese 545C high carbon steel
• Heat treated and hand finished to OEM or better standards
• Outlasts mild steel or surface-hardened sprockets up to 3x
• Precision manufactured for exact fit and smooth operation
• Suitable for recreational and competitive use
• Top performance at an economical price point

Specifications

• Brand: JT Sprockets
• Part Number: JTR487.45
• Teeth: 45T
• Chain Pitch: 520
• Material: Japanese 545C High Carbon Steel
• Weight: 1.78 lbs
• Barcode (UPC): 824225313314

Fitment

• Kawasaki KLR 650 — 2022, 2023, 2024