What makes the Giro d’Italia mountain time trial bikes so special? (video)

We get up close and personal with Rigoberto Uran's Cannondale SuperSix Evo

Mountain time trials, such as stage 15 of the Giro d’Italia, are one of the most difficult challenges in cycling when it comes to choosing equipment. Because the race is almost entirely uphill, weight is more of a factor than in any other type of stage, but at the same time riders are going solo without the shelter of a group, meaning that aerodynamics are key too.

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For Cannondale’s Head of Human Performance Sebastian Weber, the man charged with making sure Rigoberto Uran is perfectly equipped to challenge for the pink jersey, weight is certainly the most important factor, although having the UCI weight limit of 6.8kg gives plenty of flexibility to bring in aero kit to the party.

The first step in creating this bike is to cut as much weight as possible. Starting this process is easy thanks to the fact that the SuperSix Evo has one of the lightest frames on the market, but the team also plans to add lighter brakes and skewers, ditch the bottle cage, use full carbon saddle, stem and handlebars, and cut the seatpost down inside the frame to shed a few grams.

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From there Cannondale will top up the bike to the 6.8kg weight limit using aero kit. The most basic piece of equipment are a pair of aero bars, but from there the team will add deep section aerodynamic wheels, even stretching as far as a disc wheel at the back if weight allows.