Aerorage Track WheelsUsing the outstanding Halo (120mm rear width) track hubs and precision built together using 32 reliable plain 14gauge spokes combined with the Halo Aerorage Mid size Aero road rim.,Light and strong with an attractive mid size 25mm Aero section.,CNC machined finish brake surface..Available in Black anodised or Powder coat white.1 Front and 2 rear options in the following colour options;a) Black hub, rim and spokes.,b) White hub, White rim and black spokes..Black or White hubs, front, rear double fixed or fixed/free options.As usual, all Halo wheels will be individually boxed.Black wheel weights;Front : 971g,Rear: 982g.White;Front: 992g,Rear: 1042g.Front Axle Thread 9x1.,Rear Axle Thread 10x1..Note: General Fixed sprocket check:For correct fixed use, the fixed sprocket should NEVER move on the hub when pedal force is applied in both directions.,i.e. if the sprocket moves, then something is wrong.,Continued use with a fixed cog that moves will result in damage to the hub..