SRAM BB30 Direct Mount Narrow wide chainrings are specially designed for 1×9, 1×10, 1×11 systems.
Compatible with all 9, 10, 11 speed chains.
Narrow wide system : thanks to the variable thickness of the teeth, the chain is hold from dropping even in rough sections!
Slow and soft spinning compared to a classic chainring thanks to the special design of the teeth profile.
Increased chain retention during strong jolts thanks to the improved teeth height.
Mud evacuation system for a top performance whatever is the weather.
Gain 150 to 400 grams on your bicycle weight when going from a classic configuration (with front derailleur and chain guide) to a single front chainring made by Amber Bikes.
Made from hard wearing aluminum alloy.
- Material: 7075-T6
- Manufacturing: CNC Milling
- Weight (+/-1g): 44g (28T), 50g (30T), 52g (32T), 60g (34T), 67g (36T)
- Compatible with: 9, 10, 11 Speed Chains
- Surface coating: Colored anodized