Shimano XTR M9000 1x 96 BCD Variable Tooth Chainrings

The NSB narrow-wide chainring uses a ‘thin-thick’ tooth thickness mated with a standard chainring tooth profile to help retain the chain on the front ring during all types of riding. These chainrings are specifically made for Shimano XTR M9000 cranksets. Specifications: 96mm Bolt Diameter Circle (4 bolt 96 BCD) Bottom Bracket Types: Outboard/External Bearing Cups Chainline: 48mm (ring mounted inside crank) Machined from solid 7075 T6 Aluminum Anodized Black with Laser Etched Graphics Compatible with all 9, 10, 11, & 12-speed SRAM drivetrains (not T-Type) Compatible with all 9, 10, & 11-speed Shimano drivetrains Precision CNC Machined in Whistler, BC Weight: 30T – 45g 32T – 55g 34T – 65g