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How aero is aero?

Nathan rides the Transition with TT2 helmet

  • A Specialized Transition looking very aero in the A2 wind tunnel in North Carolina.
  • Nathan O'Neill in the tunnel on a Tarmac SL2 with clipons and a road helmet
  • Lowe's Motor Speedway in North Carolina. Normally used for NASCAR racing, but you can race bikes on it too
  • The control bike. The harpoon-like device is part of a mobile weather station
  • Nathan and Mike warm up for the track tests
  • Nathan rides the Tarmac road bike on the drops with road helmet
  • Nathan rides the Tarmac road bike on the clip-ons with road helmet
  • Nathan rides the Transition with road helmet
  • Nathan rides the Tarmac and clip-ons with TT2 helmet
  • Nathan rides the Transition with TT2 helmet
  • Mike Giraud on the control bike
  • Mark Cote and Dave Salazar analyse the data trackside
  • The nerve centre of the A2 wind tunnel
  • Outside the main tunnel, which is powered by four fans
  • One of the tunnel's four fans
  • Testing one of the positions in the tunnel
  • Mike Giraud and Dave Salazar look at the data
  • The main players in the test: Jason (Cafe:ine), Mark Cote (Specialized aerodynamicist), Nathan O'Neill (test rider), Mike Giraud (A2 wind tunnel), Dave Salazar (A2 wind tunnel) and Nic Sims (Specialized global PR manager)

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Nathan rides the Transition with TT2 helmet

© Jeff Jones/BikeRadar.com