Rolf prima vcx disc clincher rear road wheelthe vcx disc rear wheel with its wide rim profile and cnc machined xst disc hub comes battle ready for all that the elements can throw at you featuresrim material alloy clincherfreehub material cnc machined titaniumwheel size 700cspoke count 20spoke type bladed cx speedrim depth 28mmbrake track width external 22mmbrake track width internal 17mmhub xstfreehub compatible shimanosram 1011 speedbearings enduro high carbon chromium abec 3