Zipp 30 course clincher disc road front wheelthe zipp 30 course clincher is fast so fast that it will get you where you are used to going faster the strong and aero designed aluminium rim is effective for races gravel adventures cyclocross and training rides features materialaluminium hub rim tubeless readyyes hub model77d hub width135mm rim outer width26 4mm rimaluminium tubeless clincher rim depth26mm spokessapim cx ray spoke hole count24 hole spoke pattern2 cross s