DT Swiss PR 1400 DICUT OXiC Front Wheel - 700 QR x 100mm Rim Brake BLK 21mmDT Swiss PR 1400 DICUT OXiC Front Wheel 700 QR x 100mm Rim Brake Black 21mm. The pinnacle of aluminum road wheels. The ceramic OXIC surface coating brings brake performance to rim brakes like it has never be seen before. The rims are wide asymmetric and lightweight making for an outstanding stiffness to weight ratio. If set up tubeless supreme comfort and grip are added to the athletic character. OXiC rim surface technology for improved braking