Team time trial tech

Published: Apr. 24, 2008

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Astana made one major change — larger 54-and 55-tooth chainrings.

Photo: Matt Pacocha

Stage 4's team time trial featured a short, hilly, twisty course. Although race officials banned the use of time trial bikes, disc wheels and aero helmets, equipment choice was still a factor.

The teams used their standard road bikes, though many used the deepest-section wheels in their inventory. Race winner Slipstream-Chipotle pushed the limits the furthest, using deep section Zipp wheels and even trying to sneak aero helmet covers past the commissaires.