Shimano RT-EM810 Center Lock Rotor Size:203mm This stem sets the new

This stem sets the new standard in weight vs strength

Side-loading design allows for secure bottle retention with easy in-and-out accessibility for frames with a compact bottle mounting area

12mm bottom

Fit First And Foremost

Shimano RT-EM810 Center Lock Rotor Size:203mm This stem sets the newShimano RT EM810 disc brake rotors deliver powerful and consistent braking performance in all riding conditions. The Ice Tech Freeza design significantly reduces heat build up in the system to ensure consistent, high performance braking even on the steepest downhill stretches. Shimano's Center Lock mounting system makes installing and removing rotors quick and easy thanks to the spline mount and lock ring design. For use with E Bike Speed Sensor