Sram:

FEATURES

• SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control
• Laser-etched chainring finish is more durable
• X-Range gearing technology gives you more range and a smoother gear progression, so you’re always in the right gear
• Can be installed with a single tool, making gearing changes a breeze

SPECIFICATIONS
Chainring Size:36, 38, 40, 42, 44, 46
Bolt Circle Diameter (BCD):107 BCD
Speeds:12
Compat – Yaw:n/a
Material (Chainring):Aluminum
Color (Chainring):Black, Grey