Over the last few years we have seen a trend towards increasingly wide tires on road bikes. At the Tour de France, most teams were riding 28mm tires but we have also seen riders on tires as wide as 32mm. In our latest episode of GCN Does Science, Si and Alex test the new Vittoria Corsa N.EXT tires to see which size road bike tires are faster at different speeds.

In association with Vittoria https://gcn.eu/Vittoria

Chapters:
0:00 Intro
1:20 Our Hypothesis
2:14 The Tyres
2:49 28mm Test
6:36 32mm Test
9:31 Results

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What size tyres do you use? Let us know in the comments below!

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NEW Vittoria Corsa N.EXT First Look    • NEW Vittoria Corsa N.EXT First Look |...  
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Photos: © Velo Collection (TDW) / Getty Images & © Bettiniphoto / http://www.bettiniphoto.net/

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