Welcome back to the clinic. The bike doctor is ready to see you now. Please take a seat and listen to this week's round of community bike tech questions. The team will be discussing how to repair old gear shifters, using sealant in inner tubes, and downgrading to Di2. As always, participate in the comments section to be featured in next week's show.

00:00 Welcome to the GCN Tech Clinic
00:25 Why am I slower when I try harder?
03:56 Why does my turbo trainer and power meter read different numbers?
05:37 Can I repair my old gear shifter?
06:32 Should I put sealant in my inner tubes?
07:05 Should I swap my mechanical Dura-ace groupset for Ultregra Di2?
09:09 How should I clean my bike helmet?
10:51 How do I correctly wipe down a lubed chain?

Useful Links:
GCN Tech Uploader 👉 https://gcn.eu/techuploader
Everything Cycling. All In One Place 👉 https://www.globalcyclingnetwork.com
Visit the GCN Shop 👉 https://gcn.eu/gcnshop

What tech issue keeps you up at night? Let us know in the comments using #askgcntech ⚙️

Watch more on GCN Tech...
📹 How To Protect Your Bike From Scratches 👉    • How To Protect Your Bike From Scratches  
📹 Watch our Editor’s Choice Playlist 👉 https://gcntech.co/EditorsChoice
📹 Watch the latest GCN Tech Show 👉 https://gcntech.co/GCNTechShow

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#gcntech #gcn #cycling #roadcycling #roadbike #bike #bikes #bikelife #biketech #di2 #mechanical #bikehelmet

📸 Photos - © Velo Collection (TDW) / Getty Images & © Sprint Cycling Agency

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