What's The Fastest Tyre Pressure For A Road Bike? | GCN Does Science

Published on July 1st 2018

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Suscribirse a GCN en Español: http://gcn.eu/Suscribirse Is a higher tyre pressure faster? Is a lower pressure more comfortable? Emma conducts an experiment to determine the fastest tyre pressure on a rough road surface. She tested all the way from 119 psi (8.2 bar) to 29 psi (2 bar), the results were surprising! NEW Limited Edition Yellow T-Shirt: http://gcn.eu/Ie Subscribe to GCN: http://gcn.eu/SubscribeToGCN Register your interest in the GCN Club: http://gcn.eu/Id In a lab environment, a higher tyre pressure shows decreased rolling resistance, but this is a totally different matter out on the road. Emma admits in hindsight that she may have made some changes to the experiment to make the results a little more reliable. However, the data still highlights a very interesting trend and definitely suggests that the old-school beliefs about tyre pressure may be outdated. We hope this might inspire you to conduct your own little experiment. If you do, let us know how it goes and what data you discover! What tyre pressure do you use on your bike? Let us know in the comments. 👇 If you enjoyed this video, make sure to give it a thumbs up and share it with your friends. 👍 If you'd like to contribute captions and video info in your language, here's the link - http://gcn.eu/Ic Watch more on GCN... Tyre Pressure Geek Edition 📹 http://gcn.eu/TyreGeek Music: Epidemic Sound Kill Fiction 3 - Niklas Ahlström Knockout 3 - Da Tooby Roughness 2 - Anders Bothén Photos: © Velo Collection (TDW) / Getty Images & © Bettiniphoto / http://www.bettiniphoto.net/