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

Corrections:
6:18 331W for 28mm at 40 km/h
10:15 Should say 331W for 28mm at 40 km/h!

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

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Watch more on GCN...
📹 NEW Vittoria Corsa N.EXT First Look 👉 https://youtu.be/xBvVSy9_jz0
📹 Watch our Editor’s Choice Playlist 👉 https://gcn.eu/editorschoice
📹 Or why not check out our Features Playlist 👉 ​​https://gcn.eu/gcnfeatures

🎵 Music - licensed by Epidemic Sound 🎵
Comin' Up - Heyson
Deadbeat - Tigerblood Jewel
Doing the Twist - OTE
Fat Tire - Roy Edwin Williams
Flower Burst - Giants' Nest
Just One Of Those Things - Victor Lundberg
Na Ah (Instrumental Version) - Blood Red Sun
Taking My Time - Daniel Fridell
The Scavenger's Daughter - Under Earth

#gcn #cycling #roadbike #bike #bikes #test #bikelife #cyclinglife

Photos: © Velo Collection (TDW) / Getty Images & © Bettiniphoto / http://www.bettiniphoto.net/

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