The Vision Metron 55 Carbon Clincher Wheelset is a 25mm wide, 55mm deep dish carbon clincher aero section wheelset. The wider rims gives it a super aero modern rim shape that cuts through the air effortlessly and with the extra light P.R.A (Preload Reduction Assembly) hubs and straight pull, aero bladed spokes make these wheels 1720g per pair. They ‘re the perfect wheel to road racing and sportives, and are uses for the Cannondale Pro Cycling team week in week out. The hubs use 6 sealed bearings, 4 in the rear, 2 in the front mounted onto a 17mm axle. They finish the rear hub off with an aluminium freehub body in either Shimano 9/10/11 speed or Campagnolo 10/11 speed. Vision have had these wheels built by hand in Italy by people considered to be artist of their trade.