How To Spot a Worn Cassette, Tubeless Repair Limits & Solving Numb Hands | GCN Tech Clinic

Welcome back to the GCN Tech Clinic, where we answer your most pressing bike maintenance and technology questions! This week, we dive into how to identify a worn-out cassette, the best way to clean white bar tape, and whether you really need to carry a spare tube with a tubeless setup. We also discuss tubeless tire plugs, heat training sensors, and what might be causing those annoying pins and needles in your hands while climbing.

Chapters: ⏱️
00:00 - Welcome to the GCN Tech Clinic
00:24 - How to tell if your cassette is worn
01:35 - Do you need a spare tube with tubeless?
02:32 - How to clean white bar tape
04:05 - Is there a limit to tubeless tire plugs?
05:26 - Do you need a heat training sensor?
07:18 - Why do I get numb hands while climbing?

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What’s the most "used and abused" part on your bike right now? Is it time for a new cassette or is your bar tape looking a bit grubby? Let us know in the comments, and don't forget to use #AskGCNTech for your future questions!

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