Would inflating your bike tyres with helium help you save watts? What checks should you make when buying a new bike? Is it okay to keep TPU inner tubes in a saddle bag? Hank joins Alex on this week’s GCN Tech Clinic to answer these questions and more! 00:00 Intro 00:27 Keep TPU tubes in a saddle bag? 01:34 Mosquito net insert for helmet? 03:00 Checks when buying a used bike? 04:59 Cleaning CeramicSpeed bearings? 06:26 Road bike upgrade for a gran fondo? 09:18 Inflate tires with helium? 10:08 Rim brakes & electronic gears or discs & mechanical? Useful Links: Adventure Documentaries, Exclusive Shows & Live Racing on GCN+: https://gcn.eu/plus Download the GCN App for free: https://gcn.eu/app Visit the GCN Shop: https://gcn.eu/BlackFriday2022 Join the GCN Club: https://www.gcnclub.com/ If you have a tech queries of your own, you can send it to us in the comments below, using the hashtag #AskGCNTech and we may include it in a future episode! 💬👇 If you liked this video, be sure to give it a thumbs up 👍 and share it with your friends! Watch more on GCN Tech... 📹 5 Of The Best Weight Saving Bike Upgrades 👉 https://www.youtube.com/watch?v=pQzvvrIvKGU 📹 Watch our Editor’s Choice Playlist 👉 https://gcntech.co/EditorsChoice 📹 Watch the latest GCN Tech Show 👉 https://gcntech.co/GCNTechShow 🎵 Music - licensed by Epidemic Sound 🎵 Small Trains - The Big Let Down Milk - Cushy Cristaux - Andre Aguado #gcntech #gcn #cycling #roadbike #bike #bikes #bicycle #maintenance #clinic #ask #tech #bikelife Photos: © Velo Collection (TDW) / Getty Images & © Bettiniphoto / http://www.bettiniphoto.net/ Brought to you by the world’s biggest cycling channel, the Global Cycling Network (GCN), GCN Tech is the only channel you need for all things bike tech – past, present and future. Simply put, we’re obsessed with tech: we seek out and showcase the best in bikes, components, tech, accessories, upgrades and more from races and events, tech shows and product launches across the globe to bring you the best in road bike technology. We’ve also got great maintenance videos to help you get the most from your bike; pro-bike tours from all the biggest races; special features and the weekly GCN Tech Show. We also take a deeper look into the future of cycling, apps, smart tech and virtual riding. Join us on the channel and the GCN App to submit your content, vote on the latest tech and keep abreast of exciting new trends. Thanks to our sponsors: Castelli Clothing: https://gcn.eu/Castelli Giro Helmets: https://gcn.eu/Giro Pinarello Bikes: https://gcn.eu/Pinarello Zipp Wheels: https://gcn.eu/Zipp Topeak Tools: http://gcn.eu/Topeak Canyon Bikes: http://gcn.eu/-Canyon Pirelli Tyres: https://gcn.eu/Pirelli Orbea Bikes: http://gcn.eu/Orbea Vision Wheels: http://gcn.eu/Vision Wahoo Fitness: http://gcn.eu/Wahoo-Fitness Park Tool: http://gcn.eu/-parktool Elite Bottles: https://gcn.eu/EliteBottles Whoop Fitness: https://gcn.eu/Whoop Komoot: https://gcn.eu/komoot Selle Italia: https://gcn.eu/SelleItalia SIS: https://gcn.eu/ScienceInSport Zwift: https://gcn.eu/Zwift Shimano Wheels: https://gcn.eu/Shimano Shadow Stand: https://gcn.eu/ShadowStand DMT Shoes: https://gcn.eu/DMT Muc-Off: https://gcn.eu/MucOff Watch our sister channels: Global Cycling Network - null GCN Racing - null Global Triathlon Network - null GCN Italia - null GCN en Español - null GCN auf Deutsch - null GCN en Français - null GCN Japan - null GCN Training - null Global Mountain Bike Network - null GMBN Tech - null Electric Mountain Bike Network - null