BLACKWELL RESEARCH TRACK DISC

Track-specific version of Blackwell Research's 960 gram road disc. Looks a lot to me like the 'Brand Zed' product, but without the face dimples (or extra cost). Sealed bearings, for tubular tires only. Includes lockring, axle nuts (10×1mm) and right-angle pump chuck. $1159.00 Pictured at left is the hub detail.

• Mavic
  • Comete Piste - Ø 700 rear disc wheel for tubular tire. Weight : 980g.- Carbon walls laid up in asymmetrical segments. Lenticular shape. Adjustable sealed cartridge bearings. Price includes Mavic "MP³" 2-year protection plan. - $2150.00.

  • Io - Ø 700 front for tubular tire. Weight : 750g. (Ø 650 front = 700g.) Wheel made of an internal unidirectional carbon fiber structure for maximum stiffness and external woven carbon fiber form. Adjustable sealed cartridge hub bearings. Price includes Mavic "MP³" 2-year protection plan. - $2995.00.

A note about disc and other structural carbon fibre wheels: For all their expense, structural composite wheels (from any manufacturer) are sometimes not as accurately constructed (laterally true and round, properly dished) as what might be obtained in a well-crafted spoked wheel. While I will certainly reject any wheel that falls outside of the manufacturer's tolerances for these parameters, some margin of error cannot be consistently eliminated. If you find this unacceptable, you should acquire the wheel locally where you can observe and measure its accuracy prior to purchase.