carbon bike wheel Strictly tested by EN stander. Winspace products including frame wheel fork handlebar ect. carbon bike wheelModel: WH38CF/20 hole,R/24 hole,38mm clincher wheelset,Joytec hub front/quick release: A291SB/QR227,Joytec hub rear/quick release: A292SB/QR227,CN spoke 424 (black)+external nipple,F/radial:R/2cross,120psi,Spoke length:Front 272mm Rear276mm /280mm3K,matt carbon bike wheel