REAR SPROCKET JTR239.45 420
REAR SPROCKET JTR239.45 420. Built from premium C49 high-carbon steel, JT Steel Sprockets deliver OEM-level precision and durability. They offer long life, exact fit, and dependable power transfer mile after mile. Features C49 high-carbon steel rears for long wear, precision manufacturing for exact OEM fit, broad coverage with 2,500+ motorcycle & ATV applications, consistent power transfer and sprocket tooth profile accuracy, and engineered for durability in street, track, and off-road use. Specifications include Material: C49 high-carbon steel, Tooth count: 45, Drive chain pitch: 420, and Colour: Black.
- SKU
- SR239-45S
- Brand
- JT
- Availability
- In Stock (1)
FULL DESCRIPTION
JT Rear Sprocket JTR239.45 420
Crafted from premium C49 high-carbon steel, this rear sprocket from JT Sprockets is engineered for exceptional durability and performance. Designed with OEM-level precision, it ensures a precise fit and reliable power transfer for your motorcycle or ATV.
Key Features:
- Constructed from C49 high-carbon steel for extended wear life.
- Manufactured with precision for an exact OEM fit.
- Offers consistent power transfer and accurate sprocket tooth profile.
- Engineered for durability across street, track, and off-road riding conditions.
Specifications:
- Material: C49 high-carbon steel
- Tooth Count: 45
- Drive Chain Pitch: 420
- Color: Black


