Gorewear Phantom Jacket Black Neon Yellow Womens Small MFPN=13044 FT In contrast to floating discs In contrast to floating discs the torque is transmitted to the dovetail shaped toothing over its entire surface instead of just the rivets increasing the rigidity of the brake disc and the degree of heat dissipation under continuous load Ring Position Type Chain Retaining Single Ring Tooth Count 40 Round or Oval Round Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Offset 6 Chainline Hub Compatibility 130 Hubs Material Aluminum Defined Color Black Direct Mount Type Direct Mount SRAM margin right:5% Front zip with black reflective material