Projekt Fixie - 50mm Wheels Set with 700 x 28c Kenda Tires & Tubes Sleek Matte Black, Wide 50mm V-Deep Rims, double-walled aluminum 700 x 28c Kenda Tires and tubes with 60mm presta valves for front and rear wheels with 32 spokes each (installed) Name brand flip-flop Quando hubs with 16T fixed cog, along with a 16T freewheel cog for single-speed riding (installed) Includes nylon rim-strips to protect against sharp edges and prevent tube puncture (installed) 50mm Super deep dish rims with hub width of 100mm front, 120mm rear; 4.5lbs front, 5lbs rear