SRAM RED AXS Power Meter Kit 46 33t 2x12 Speed 8 Bolt Direct Mount Polar Gray D1 Model=Syerra Tire Rotor Size (mm) 160 Pad Rotor Size (mm) 160 Pad Compatibility All Pad Compounds Rotor Type Two Piece keyword search Dura Ace Hub Disc Compatibility Center Lock The lightweight synthetic upper is quick to dry when wet width:100% Tooth Count 46 33 Tooth Count 46 32 Drivetrain Speeds 12 Round or Oval Round Defined Color Gray Direct Mount Type Direct Mount SRAM Ring Position Type Inner Ring Position Type Outer Chainring BCD Direct Mount SRAM Color Gray Material Aluminum Chainline Hub Compatibility 130 Hubs Chainline Hub Compatibility 135 142 Road Disc Hubs < 415 mm Chainstay