Shimano Steps RT-EM810 Disc Brake Rotor - 180mm Center Lock External Lockring Rear Only Magnet Bracket Aero Bar Part Fits left-hand (LH) threaded hubs

Fits left-hand (LH) threaded hubs only (allows mounting drivetrain on left side of bike for grinding on the right side)

5mm Speed 11 Crank Spindle Diameter 24/22mm Interface GXP

Durable 7075-T6 construction for long wear-life stiffness and strength Tooth Count 30 Drivetrain Speeds 12 Round or Oval Round Offset 3

Color Gun Metal Wheel Diameter 20 Frame Size 21 Primary Color Grey

5"/29" A1 100mm X-Soft Silver

Shimano Steps RT-EM810 Disc Brake Rotor - 180mm Center Lock External Lockring Rear Only Magnet Bracket Aero Bar Part Fits left-hand (LH) threaded hubsShimano RT EM810 disc brake rotors for speed sensor systems deliver powerful and consistent brake performance in all riding conditions. The ICE TECHNOLOGIES FREEZA rotor significantly reduces heat build up in the brake system to ensure consistent high performance braking even on the steepest downhill stretches. Recommended brake kit: Shimano M9120 M8120 M7120 1. 5mm thickness Centerlock mounting system makes installing and removing rotors quick and