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Many people worry about using deep section wheels in crosswinds and often with good reason as it can feel a bit scary when the handlebars twist in your hands. But just how bad a problem is it? In this video, Ollie looks at deep section wheels vs cross winds. In association with Zipp. GCN Christmas Gift Guide: http://gcn.eu/10k Subscribe to GCN: http://gcn.eu/SubscribeToGCN Register your interest in the GCN Club: http://gcn.eu/10j Subscribe to GCN en Español: http://gcn.eu/gcn-en-espanol Submit your content with our new uploader: http://gcn.eu/upload Join our Facebook community: http://gcn.eu/FBCommunity We’re using some of Zipp’s range of wheels to illustrate this because they are one of our sponsors, and because they have poured a load of resources into actually trying to make deeper wheels easier to handle in windy conditions, but many of the points apply to other wheel brands too. The reason we’re tackling the subject is because disc brakes are encouraging more people to use deep section wheels year around. In poor conditions, rim brakes trash your rims, but when you eliminate that wear, there is no disincentive to carbon other than the initial outlay. It’s first important to understand what causes deep wheels to feel unstable. So here’s some science. The tyre is the leading edge and splits the air. Behind the tyre, the rim controls the airflow helping it come together smoothly at the trailing edge… This reduces drag and makes you faster for the same effort. This tends to work fine when the wind is at 0-1 degrees of yaw, which means head on. But as soon as the yaw angles increase such as with cross winds, problems arise. This is caused by the air flow suddenly detaching from the rim, causing a drop in pressure and turbulence forms an area of low pressure behind the rim. An area of low pressure behind the rim, effectively sucks it backwards. This aerodynamic stall is a similar concept to that on aeroplane wings. Do you ride deep section wheels if it's windy? 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/10i Watch more on GCN... Aero Wheels - What Difference? 📹 http://gcn.eu/aerowheels Music: Epidemic Sound Fiesta - Timothy Infinite I Want You Always (Instrumental Version) - Snake City Maybe We'll Get There (Instrumental Version) - Ameryh The Upper Hand 2 - Peter Sandberg Trumpet Sad - SFX Producer Weekend (Instrumental Version) - Paisley Pink Photos: © Velo Collection (TDW) / Getty Images & © Bettiniphoto / http://www.bettiniphoto.net/ About GCN: The Global Cycling Network puts you in the centre of the action: from the iconic climbs of Alpe D’Huez and Mont Ventoux to the cobbles of Flanders, everywhere there is road or pavé, world-class racing and pro riders, we will be there bringing you action, analysis and unparalleled access every week, every month, and every year. We show you how to be a better cyclist with our bike maintenance videos, tips for improving your cycling, cycling top tens, and not forgetting the weekly GCN Show. Join us on YouTube’s biggest and best cycling channel to get closer to the action and improve your riding! Welcome to the Global Cycling Network | Inside cycling Thanks to our sponsors: Alta Badia: http://gcn.eu/AltaBadia- // Maratona Dles Dolomites: http://gcn.eu/MaratonaDlesDolomites- Assos of Switzerland: http://gcn.eu/Assos KASK helmets: http://gcn.eu/KASK fi’zi:k shoes and saddles: http://gcn.eu/fizikshoes and http://gcn.eu/fiziksaddles Wiggle: http://gcn.eu/wiggle Topeak tools: http://gcn.eu/Topeak Canyon bikes: http://gcn.eu/-Canyon Quarq: http://gcn.eu/Quarq Orbea bikes: http://gcn.eu/Orbea Trek Bicycles: http://gcn.eu/-Trek Vision wheels: http://gcn.eu/Vision Zipp wheels: http://gcn.eu/Zipp power2max: http://gcn.eu/power2max Wahoo Fitness: http://gcn.eu/Wahoo-Fitness Park Tool: http://gcn.eu/-parktool Continental tyres: http://gcn.eu/continental- Camelbak: http://gcn.eu/camelbak- Suscribirse a GCN en Español: http://gcn.eu/Suscribirse The GCN Club - http://gcn.eu/club YouTube Channel - http://gcn.eu/gcnYT Facebook - http://gcn.eu/gcnFb Instagram - http://gcn.eu/GCNInsta Google+ - http://gcn.eu/gcnGPlus Twitter - http://gcn.eu/gcnTW GMBN Tech - http://gmbn.tech/subscribe GCN Tech - http://gcntech.co/subscribe EMBN - http://embn.me/subscribe Leave us a comment below!