The ultimate racing and training wheel they are fast durable and lightweight ideal for stage races criteriums triathlons cyclo cross and everyday riding these wheels are a set which includes free continental grand prix tyres and tubes spokes pbo front 16 rear 20 lacing radial2 cross rim 43mm super light 3k carbon rim with aluminum brake surface clinchertubular clincher hubs custom cnc machined hidden flange front force 10 rear axles aerospace grade aluminum freehub