In my last race my Spesh Renegade S-Works tire got a sidewall puncture (thorn) that wouldn’t seal up, so I had to stick a tube in to finish the race. Does anyone have any experience – is it possible – repairing a sidewall puncture such that the tire can be run tubeless again? The hole doesn’t seem that large, but definitely wouldn’t reseal with Stan’s.

I use these which work very well

http://www.chainreactioncycles.com/Models.aspx?ModelID=7971&utm_source=Google&utm_medium=Shopping&utm_name=UnitedKingdom

all my side wall repairs fail after a while running tubeless. IMO the way the side walls flex eventually ruins any repair.

I’ve found the weldtite above one works faultlessly if done properly – it’s holding up to 60psi on my cx tyres…

The patch/superglue method that most others seem to be have failed though.

Thanks for the tips! I’ll stick the weldtite in my next CRC order, as I don’t think there is a distributor here in Singapore.

From about this time last year until November I ran a tyre tubeless with a gash in the sidewall (it wasn’t worn enough to stomach chucking it). I used motorbike patches, one on the inside and I also put one on the outside too. It ran without issue for several months, I only got rid of it because the tread was so worn.

Worth a look I reckon if they’re easier to get hold of.

I’ve got a Rubber queen with a cut in the sidewall which I sewed with dental floss and then fitted a patch on the inside. I’ve only used it briefly on the rear as I don’t trust it 100%.

Tubless tyre patch I had no luck with the strip type plug as suggested by Clubber when trying to fix a Beaver with a small sidewall hole; maybe the sidewalls are just too thin on Beavers – just seemed to make the hole bigger. Tyre off and repaired with a patch as above and it’s been great ever since.

I’ve successfully used a standard glue-on tube patches inside the tire casing. They’ve been able to repair regular tires run tubeless with Stan’s sealant with no issues. In fact, I think that one of my current tires (Tioga Psycho Genius) has had a patched sidewall since last summer.

If I get a hole that Stan’s won’t seal I usually repair (when out) with standard glue patches – its a bit of faff, but easier than a tube as the inside of the tyre is usually ‘peppered’ with debris.

At home I’ve superglued them before, but tbh if the tyre is over 1/2 worn I’ll bin it – as it will probably fail again quite quickly.

Use normal patches and normal rubber glue (vulcanising solution). If it’s a big rip you can even stack a few patches or glue on a piece of inner tube. Use sandpaper to roughen the area and once glued clamp it to let it all dry for a few hours before inflating. I’ve patched a few Rubber Queen sidewall’s this way and they are still working under me three months later.

Superglue (and most other glues) will be too brittle – the vulcanising solution/glue lets stuff move.

Not for me I don’t trust ’em. But then I do tend to break a lot of stuff and at the tender age of 41 fret more about crashing than I used to. Perhaps I should MTFU.