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From video: The Truth About Mountain Bike Maintenance | #ASKGMBNTECH
Published: March 14, 2026

Video Description

Park Tool legend Calvin Jones joins Owen and Adam to answer your most technical mountain bike questions! We dive deep into why mixing DOT fluid and mineral oil is a recipe for disaster and debate whether bigger rotors or 4-piston calipers provide the best stopping power for trail riding. 💻 Submit Top Mods, Bike Caves, Rewinds and more to us 👉 https://www.gmbn.com/uploader ⏱️ Timestamps ⏱️ 00:00 - Introduction with Calvin Jones 00:20 - Can You Swap DOT Fluid for Mineral Oil? 00:52 - Why Incompatible Seals Fail 01:21 - 2-Piston vs. 4-Piston Calipers 01:44 - The Power of Mechanical Leverage 02:35 - Benefits of Bigger Rotors 04:42 - Rotor Thickness Explained Useful Links: 🛍 Explore The GMBN Shop 👉 https://gmbn.eu/SpringTees Subscribe to the Channel for more! 👉 https://gmbn.tech/subscribe Looking for MTB Insurance? Check here 👉 https://gmbn.eu/insurance Sign-up to our newsletter 👉 https://gmbn.eu/newsletter If you had to choose one upgrade for your bike right now, would you go for a bigger rotor or a 4-piston caliper? Let us know why in the comments! 👇 Watch more on GMBN Tech... 📹 https://youtu.be/L3NaPNro7U4 📹 Watch our Editor’s Choice Playlist 👉 https://gmbn.tech/editorschoice 📹 Watch our weekly show 👉 https://gmbn.tech/GMBNTechShow 🎵 Music - licensed by Epidemic Sound 🎵 Grandmas Cookies - Henyao Head in the Clouds - Mizlo It Was Fun While It Lasted - Matt Large #gmbntech #gmbn #mtb #mountainbiking 📸 Photos - © UCI Mountain Bike World Series / © Getty Images / © Sprint Cycling Agency The Global Mountain Bike Network (GMBN) is the world’s largest and fastest-growing online mountain bike channel and community – and your destination for the best mountain bike content in the world. GMBN is dedicated to inspiring and unlocking your riding potential. Our videos cater to fans of every mountain bike discipline: from mile-munching cross-country (XC) riders, through adrenaline-fuelled dirt jumpers, gravity-hungry downhillers or aspiring enduro racers, and beyond. Every day of every month, our ex-pro presenting team are on hand to entertain and inspire you while also providing a uniquely qualified insight into the world of mountain biking. Every week we deliver original daily videos that include: Adventurous and entertaining features Mountain bike skills coaching Technical advice and guidance Mechanical know-how to keep you rolling A place for the riding community with our weekly Dirt Shed Show Thanks to our sponsors: Canyon Bikes: http://gmbn.eu/Canyon Orbea Bikes: https://gmbn.eu/Orbea Propain Bikes: https://gmbn.eu/Propain Park Tool: http://gmbn.eu/ParkTool Crankbrothers Pedals: http://gmbn.eu/crankbros Shimano Footwear: https://gmbn.eu/ShimanoShoes Ergon: http://gmbn.eu/ergon Vittoria Tires: https://gmbn.eu/Vittoria Reynolds wheels: https://gmbn.eu/Reynolds FSA: http://gmbn.eu/fsa Topeak: http://gmbn.eu/topeak Garmin: https://gmbn.eu/Garmin CamelBak: https://gmbn.eu/CamelBak Met Helmets: https://gmbn.eu/Met-Helmets Bluegrass Protection: https://gmbn.eu/Bluegrass Watch our sister channels: Global Mountain Bike Network - https://gmbn.eu/YouTube Electric Mountain Bike Network - https://embn.me/YouTube Global Cycling Network - https://gcn.eu/YouTube GCN Tech - https://gcntech.co/YouTube GCN Racing - https://gcn.eu/RacingYouTube Global Triathlon Network - https://gtn.io/YouTube GCN Italia - https://gcn.eu/ItaliaYouTube GCN en Espanol - https://gcn.eu/EspanolYouTube GCN auf Deutsch - https://gcn.eu/DeutschYouTube GCN en Francais - https://gcn.eu/FrancaisYouTube GCN Training - https://gcn.eu/TrainingYouTube GCN Racing - https://gcn.eu/RacingYouTube