Spare Tubes Cracking

Discuss light weight issues concerning road bikes & parts.
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Posts: 245
Joined: Mon Jun 18, 2018 10:52 pm


I use a swat “saddle bag” and have noticed cracks due to drying out on my spare tube. Could I coat the tube in something to protect it? I found a site that had all the chemicals butyl can react with and how it reacts. Borax was unreactive, could I lightly powder my tubes?

by Weenie

Posts: 3872
Joined: Tue Jan 28, 2014 6:52 pm

by AJS914

Put some talcum powder on them and store them in a small plastic bag (think ziplock sandwich bag) and then put that in your seat pack.

The Swat is the one with the tube exposed? I'd also get a better saddle bag. UV exposure is probably causing most of the cracking.

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