North Shore Billet Shimano HG12 1X12 104 BCD Variable Tooth Chainring

NSB's Shimano HG12-specific chainring tooth profile is mated with their proven narrow-wide tooth pattern to help retain the chain on the front ring during all types of riding. Utilizing the most common bolt pattern; 104 mm BCD.

Features:

• Machined from solid 7075 T6 Aluminum
• Anodized Black with Laser Etched Graphics
• Precision CNC Machined in Whistler, B.C.

Compatibility:

• Shimano 12-speed drivetrains only

Specifications:

• Bolt Diameter Circle: 104 mm (104 BCD)
• Bottom Bracket Types: BB30 / GXP / Boost
• Chainline: This varies with your crankset
  • 30T: ~50 mm on a 2X10 mid-ring mounting position
  • 32T, 34T, 36T, 38T: ~52 mm on a 2X10 mid-ring mounting position
• Weight:
  • 30T: 44 g
  • 32T: 40 g
  • 34T: 44 g
  • 36T: 58 g
  • 38T: 66 g