Ironman Tri-suits

Ironman Tri Suits

Triathlon brands are increasingly realising the aerodynamic benefits of tri-suits (remember that 80% of drag is caused by the rider, not the bike) and this 2020 collection of Lycra is the most tech-happy yet, with fabric boasting dimples, ribs and more all present and correct.

With this increased emphasis on speed, we jumped at the chance to test these suits under the watchful eye of aero specialist Stephen Roche of thebiketailor.com (tel 01273 569006), in the Silverstone Sports Engineering Hub to assess the aero properties of each suit. Garments were tested at a variety of yaw angles (0, 5 and 10) and at 45km/h on a mannequin in a comfortable, not too aggressive, tri-bar position.

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