Watch: how much faster is a time trial bike, really?

We headed to the wind tunnel to delve into the data

Image: Toby Martin

A promotional feature in association with Boardman , first published in 2019

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TT bike vs road bike: which is faster
Bike/positionWatt saving vs baseline
AIR road bike, on hoods, at 40kphBaseline
AIR road bike, on drops, at 40kph18
AIR road bike, on drops, tucked, at 40kph38
AIR road bike, tucked on tops, at 40kph39
AIR road bike, clip on bars, position 1, at 40kph66
AIR road bike, clip on bars, optimised*, at 40kph83
TTE time trial bike, to travel 40kph, at 40kph86
TTE time trial bike, narrower arms, at 40kph87
TTE time trial bike, at 50kph21 vs AIR with clip ons

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Michelle Arthurs-Brennan

Michelle Arthurs-Brennan the Editor of Cycling Weekly website. An NCTJ qualified traditional journalist by trade, Michelle began her career working for local newspapers. She's worked within the cycling industry since 2012, and joined the Cycling Weekly team in 2017, having previously been Editor at Total Women's Cycling. Prior to welcoming her daughter in 2022, Michelle raced on the road, track, and in time trials, and still rides as much as she can - albeit a fair proportion indoors, for now.