Chest fairings, aero lunchboxes and custom cockpits... the non-UCI tech that makes triathletes go so fast

We take a look at some of the more outlandish equipment from this year's Ironman World Championships - some UCI legal and some most definitely not

Gustav Iden riding the Ironman World Championships in Kona
(Image credit: Getty Images)

OK, this is Cycling Weekly and if we do other sports we don't do them one after the other... but we couldn't help noticing at the Ironman World Championships earlier this month the fastest bike split was by Sam Laidlow at a staggering average speed of over 44kph for the 180 kilometres.

The British 100-mile time trial national competition record at 3:13:37 set by Marcin Bialoblocki in 2019 is equivalent to just under 50kph, but he didn't have to swim 2.4 miles before it or run 26.2 miles after it.

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Tom Epton
Freelance writer

Tom Epton is a freelance writer and data scientist. Originally training as a scientist after completing his studies in physics he realised that cycling was what he wanted to spend his life thinking about. Now he works with manufacturers, athletes and teams using cutting edge data science methods to find performance gains. Tom writes primarily about sport-science and tech!