Description
If you’re running a 520 chain setup and need a rear sprocket that can handle the punishment of off-road riding without adding unnecessary weight, the Renthal TwinRing delivers durability where it counts. The dual-material construction—ultralight 7075 T-6 aluminum core with a nickel-coated steel ring—gives you the strength to survive impacts while keeping rotational mass minimal, directly improving acceleration and throttle response. Self-cleaning mud grooves mean less maintenance and more consistent performance in harsh terrain.
- Tooth Count: 49T
- Chain Size: 520
- Inner Ring: Ultralight 7075 T-6 aluminum
- Outer Ring: Electro-less nickel-coated steel
- Color: Black
- Weight: ~1.75 lbs
- Fitment: 520 chain compatible
- Installation: Bolt-on
- MPN: 1540-520-49GPBK
- Construction: Thermally-fitted permanent bond
- Fasteners: Flat socket head screws
- Groove Design: Self-cleaning mud channels






