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Published on May 2, 2018
Jon is back in the tech clinic answering all your pressing cycling tech questions. This week we're focussing mostly on chains and cassettes: when to replace them, what's compatible with what, and keeping them running longer.
It's not all chains though this week, Jon is also talking cutting seatposts to make your bike lighter, track cyclists' strange stem angles, and why we don't run tyres at the manufacturer's recommended pressures.
If you've got any other cycling tech related questions, send them in using the hashtag #askgcntech
If you'd like to contribute captions and video info in your language, here's the link 👍 http://gcntech.co/3f
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