Shimano XTR RT-CL900 Ice-Tech Centerlock Disc Rotor - 180mm - Centrelock - Standard - 1.8mm to 1.9mm Virtual Parent Cons: There is a lot

Cons: There is a lot of information readily available online (if you want to look for it)

secure back waist pocket for phone

You will use the stock bolts to mount this chainring

Materials: Laser cut alloy

so they'll keep you feeling cool and fresh when things start to heat up during the ride

Shimano XTR RT-CL900 Ice-Tech Centerlock Disc Rotor - 180mm - Centrelock - Standard - 1.8mm to 1.9mm Virtual Parent Cons: There is a lotWhen developing the XTR CL900 brake rotors, Shimano engineers succeeded in preventing heat related deformation of the rotors. As a result, the CL900 rotors offer more reliable, more controllable braking performance and are quieter than ever before. Fortunately, the weight has remained at the same low level as the previous version. Also on board is Shimano's Ice Tech cooling technology, which ensures excellent heat dissipation and constant braking