JT Rear Sprocket Steel 39T for 420 Chain - High-Quality Japanese Steel

This JT Rear Sprocket, part number JTR801.39, is engineered for durability and performance in motorcycle applications. Made exclusively from high-grade Japanese 545C high carbon steel, this sprocket offers exceptional strength and longevity. Each sprocket is heat treated and hand finished to meet or exceed OEM standards, ensuring reliable operation and a precise fit. Its robust construction allows it to outlast mild steel or surface-hardened sprockets by two to three times, providing excellent value and extended service life.
Designed specifically for 420 chain applications, this sprocket features 48 teeth at the rear to match OEM gearing specifications of 48-tooth rear and 21-tooth front sprockets. The 530 chain pitch ensures compatibility with a wide range of motorcycle models, delivering smooth power transfer and efficient performance. Whether you're replacing worn sprockets or upgrading for better durability, this product offers top quality at an economical price. Its rugged construction and precision finish make it a trusted choice for motorcycle enthusiasts seeking reliable performance and long-lasting wear.

Features:

• Top quality at economical prices

• Made exclusively from 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

• OEM gearing is 48 Tooth rear, 21 Tooth front

• All sprockets have 530 chain pitch