Wise words and there is a reason for sure why it blew, but could well be a manufacturing fault or similar that you'll never find.

Good work keeping it up as they say!

I would (like GULG says) be really cautious of the HD tube & Slime. You're adding a huge amount of weight to a 21" wheel that could cause all sorts of trouble that gets worse with speed. Personally I would use a std tube.

If you believe in statistics, this shouldn't happen again unless of course there is something lurking on the rim..

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