North Shore Billet 1x 64/104 BCD Variable Tooth Chainrings

The 1x 64/104 BCD variable tooth chainrings are compatible with all 9, 10, 11, SRAM and Shimano drivetrains, and 12-speed SRAM drivetrains.

Specifications:

- 104mm Bolt Diameter Circle (104 BCD)
- Bottom Bracket Types: BB30 / GXP / Boost
- Chainline: This varies with your crankset
- 28T: Fits any standard 64/104BCD cranks. The 28T chainring uses 64mm BCD to mount onto the crank arm and is offset 5mm to a 49mm chain line.
- 30T: ~50mm on a 2×10 mid-ring mounting position
- 32T, 34T, 36T, 38T: ~52mm on a 2×10 mid-ring mounting position
- Machined from solid 7075 T6 Aluminum
- Anodized black with laser-etched graphics
- Precision CNC machined in Whistler, BC.

Weight:

28T – 45g
30T – 45g
32T – 40g
34T – 45g
36T – 55g
38T – 65g