1  Proprietary 255TG resin system carbon fiber can withstand high heat from braking,tested 380 degree celsius in Taiwan Braking Lab without compromise,resist clincher carbon rims brake track deformation and delamination confidently

2  Auto-machine process can remove extra resin on brake surface,allow brake pads to work on carbon fiber directly,creates better braking performance in dry and wet condition.

3  Extra weight compensation on the rim valve hole opposite,reach the completed wheels dynamic balance.

4  Water drain holes on each size of the rim,opposite to valve,will dry out rim's cavity after wet ride or bike washing.