MTX 1220 Steel Rear Sprocket #520 (39T) (11-KYJ-39)

MTX OE Steel sprockets are strong and durable, heat-treated and hand-finished for longevity. Front sprockets are constructed from SCM420 chromoly steel alloy while rear sprockets are constructed from C45 high carbon steel with a Zinc electroplated finish. Designed as an OEM replacement to exceed OEM specifications at a fraction of the price, making them your ideal cost-effective solution for replacing old worn and warped sprockets.

• OEM replacement
• Exceeds OEM specifications
• Heat-treated and hand finished
• Constructed from C49 high-carbon steel
• Pitch: 520
• Teeth: 38

NOTE: Actual sprocket design may be different from the image above.