Description
If you’re running a 520 chain setup and want a rear sprocket that actually lasts, the Renthal Twinring 48T delivers the durability and weight savings that separate reliable performance from constant replacement cycles. The dual-material construction—7075 T-6 aluminum core with electro-less nickel-coated steel outer ring—gives you the strength of all-steel without the weight penalty, while the self-cleaning mud grooves keep dirt from accelerating wear. Whether you’re pushing hard on the track or grinding through technical off-road terrain, this sprocket outlasts standard aluminum alternatives by a factor of three.
- Tooth Count: 48T
- Chain Size: 520
- Inner Ring: Ultralight™ 7075 T-6 aluminum
- Outer Ring: Electro-less nickel-coated steel
- Bonding Method: Thermally expanded, permanent bond
- Color: Black
- Self-Cleaning: Mud grooves between teeth
- Fasteners: Flat socket head screws
- MPN: 2240-520-48GPBK
- Installation: Bolt-on replacement
- Durability: 3x standard aluminum sprockets








