On this week’s GCN Tech Clinic, Alex and Ollie answer your questions on the most aero riding position for descending, whether single use quick links can actually be reused, what would happen if you pumped water into your tyres & more! Chapters: 00:00 Intro 00:18 Best position for descending? 02:07 Compact vs semi-compact chainring? 03:08 Chain slipping on new chainring? 04:33 Max gradient simulation on turbo trainers? 05:58 Reuse single-use quick links? 07:37 Pump tyres up with water? 08:07 Cable holes after wireless upgrade? 09:29 Upgrading chain? 11:21 Outro Useful Links: Adventure Documentaries, Exclusive Shows & Live Racing on GCN+: 🤍gcn.eu/plus Download the GCN App for free: 🤍gcn.eu/app Visit the GCN Shop: 🤍gcn.eu/gcnshop Join the GCN Club: 🤍🤍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... 📹 How To Customise Your Bike & Cycling Kit Like A Pro 👉 🤍youtu.be/hgQ1fvckLZM 📹 Watch our Editor’s Choice Playlist 👉 🤍gcntech.co/EditorsChoice 📹 Watch the latest GCN Tech Show 👉 🤍gcntech.co/GCNTechShow 🎵 Music - licensed by Epidemic Sound 🎵 #gcntech #gcn #cycling #roadbike #bike #bikes #bicycle #maintenance #clinic #ask #tech #bikelife Photos: © Velo Collection (TDW) / Getty Images & © Bettiniphoto / 🤍🤍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: 🤍gcn.eu/Castelli Giro Helmets: 🤍gcn.eu/Giro Pinarello Bikes: 🤍gcn.eu/Pinarello Zipp Wheels: 🤍gcn.eu/Zipp Topeak Tools: 🤍gcn.eu/Topeak Canyon Bikes: 🤍gcn.eu/-Canyon Pirelli Tyres: 🤍gcn.eu/Pirelli Orbea Bikes: 🤍gcn.eu/Orbea Vision Wheels: 🤍gcn.eu/Vision Wahoo Fitness: 🤍gcn.eu/Wahoo-Fitness Park Tool: 🤍gcn.eu/-parktool Elite Bottles: 🤍gcn.eu/EliteBottles Whoop Fitness: 🤍gcn.eu/Whoop Komoot: 🤍gcn.eu/komoot Selle Italia: 🤍gcn.eu/SelleItalia SIS: 🤍gcn.eu/ScienceInSport Zwift: 🤍gcn.eu/Zwift Shimano Wheels: 🤍gcn.eu/Shimano Shadow Stand: 🤍gcn.eu/ShadowStand DMT Shoes: 🤍gcn.eu/DMT Muc-Off: 🤍gcn.eu/MucOff Watch our sister channels: Global Cycling Network - 🤍🤍youtube.com/gcn GCN Racing - 🤍🤍youtube.com/gcnracing Global Triathlon Network - 🤍🤍youtube.com/gtn GCN Italia - 🤍🤍youtube.com/gcnitalia GCN en Espanol - 🤍🤍youtube.com/gcnenespanol GCN auf Deutsch - 🤍🤍youtube.com/gcnaufdeutsch GCN en Francais - 🤍🤍youtube.com/gcnenfrancais GCN Japan - 🤍🤍youtube.com/gcnjapan GCN Training - 🤍🤍youtube.com/gcntraining Global Mountain Bike Network - 🤍youtube.com/gmbn GMBN Tech - 🤍🤍youtube.com/gmbntech Electric Mountain Bike Network - 🤍🤍youtube.com/embn
Out of content!? Off course it faster to pedal!
youtube.com/results?search_query=%23askgcntech #AskGCNTech Hi guys. A lot of advice tells me to run low tyre pressures (say 5 bar) yet my Mavic Yksion UST say not to go below (say) 6 bar printed on the sidewall. This occurs on other tyres i have too (different brands). Will they fall off if I run them below the stated min pressure? Is this the manufacturer being ultra cautious? (note this is subtly different to the question asked a couple of weeks ago by another viewer; I am not using inserts and this is a 25 mm road tyre issue). Cheers!
I thought you were going to address pedaling/coasting strategies to maximize descending...??
re quick links: you can feel when its done....doesnt 'click' into position
youtube.com/results?search_query=%23askgcntech #AskGCNTech what would the consequences of using a chain made entirely of quicklinks be?
… what about zipties?
Great sound effect during "breaking of collar bone" sequence.
youtube.com/results?search_query=%23askgcntech #AskGCNtech hi, at what speed do aero wheels become an advantage over shallow wheels? e.g. 50mm deep wheels vs 25mm wheels. Thank you
Got 50mm rims. What tubeless valve length do I need ? youtube.com/results?search_query=%23askgcntech #AskGCNTech
youtube.com/results?search_query=%23askgcntech #AskGCNTech Hi Alex / Ollie. I'm currently running a Shimano Ultegra Di2 groupset and I'm thinking of switching to a SRAM groupset on my next bike. However, my only hesitation is that the tools I currently have (e.g. cassette tool, brake bleed kit) are all Shimano specific and would go to waste when I switch to SRAM.
What other considerations are there when switching from a Shimano to SRAM groupset?
1) Is running a 53/39T crankset excessive? What are the pros and cons?
2) I will like to try a 11-28T rear setup with the front 53/39T. Will it completely destroy my knees and body while I am climbing?
QUESTION: With GCN Tech resident Chemist OB at our disposal. Why haven’t we been asking him about other potential gasses could we inflate our tires with for gains? Nitrogen? Helium?
What do you think? Anything there? 🧐
Most hardware stores have plastic hole plugs, commonly used for furniture, machines, etc. Usually have clear ones to avoid matching problems.
Hi Guys, having trained competition judo (also many years as licensed teacher), offroad motorcycling and cycling all for a couple of decades now, please contact your local judo or aikido club. They know exactly how to fall and avoid injuries. Alex & Ollie are right, you need to overcome your reflexes and not try to put your hands and arms first, smooth contact and roll. I violently dismounted my MC and cycle countless times and never suffered more than minor bruises. Also invited my offroad buddies to some falling exercises to my dojo which clearly reduced the frequency of broken collar bones and wrists. But you need to practice frequently to overcome your reflexes. And one more thing: Separate from your bike immediately and as far as possible. There is no decent rolling with a bike still attached to your feet😀. And remember: Grass and bushes are soft, cars and tarmac are not. Cheers! P.S.: ALWAYS wear a helmet, goes w/o saying. And never salute a fellow cyclist w/o helmet!
My last crash (3 yrs ago). I was on the ground so fast, I had no time to react or prepare for the impact. But the scar from my collar bone repair looks pretty cool...
Re: pumping up tyres with water. You two scientists sure know there's a difference in compressibility between gases and liquids, right? Was it too technical an explanation for the show?!?
I find that the quicker you go down (i.e. time of fall not road speed) you do less damage as you don't stick arms or legs out. Still go down with a whack though.
Is it just me or was the thumbnail question about pedalling or coasting on a decent not answered?
youtube.com/results?search_query=%23askgcntech #askgcntech hi guys (and Manon). I have a Carbon Scott addict with built in mudguard mounts, I bought the official Scott mudguards that fit the bike and after fitting the mudguards one the screws on the fork rounded off the thread in the carbon frame when fitting the front mudguard, any suggestions on how to fit the mounting screw into the frame now the thread has gone from inside the frame? Thanks
youtube.com/results?search_query=%23askgcntech #askgcntech Riding in a strong crosswind the other day, I wondered if a high cadence would give a gyroscope effect and reduce buffeting from the wind. Presumably from feet and shoes if so. Can Ollie show us the maths please.