JT Sprockets JTR239.40 40T Steel Rear Sprocket

The JT Sprockets JTR239.40 is a high-quality 40-tooth steel rear sprocket engineered for durability and precision performance. Manufactured using advanced computer-aided design and CNC machining technology, this sprocket delivers the consistent quality and longevity that JT Sprockets is known for in the powersports industry.

Key Features:

• Constructed from premium C45 high carbon steel for superior strength and wear resistance
• 40-tooth configuration for optimized gearing performance
• Precision CNC-machined teeth ensure smooth chain engagement and extended chain life
• Heat-treated for maximum durability and resistance to wear
• Hand-finished to meet or exceed OEM quality standards
• Direct replacement for stock sprockets on compatible applications

JT Sprockets combines decades of racing heritage with modern manufacturing processes to produce sprockets that perform under the most demanding conditions. The heat treatment process hardens the sprocket teeth while maintaining core toughness, providing an ideal balance of durability and reliability for street and off-road use.