Ding + Tubeless = fail?
I managed to whack my rear rim riding a while ago and put a nice ding in to the sidewall. Not a problem until I decided to go tubeless. It's a DT4.2 with a 2.1 UST nobby nic. It will inflate but even if the bike's just standing upright for no reason after say 30 minutes (insert random number – sometimes over a day) it totally fails the seal. Basically I don't want to trust it on a longer ride. Is it worth trying some tape on there to try to maintain the bead / rim contact, or should I bite the bullet and rebuild it with a new rim? (not intending to go back to tubes)
Cheers!Posted 8 years agogingerflashMember
"I've had a couple of dings – I just use an adjustable spanner to bend the rim back straight and it seems to be ok runnign tubeless. "
I have loads of dents on my rims, some crudely straightened, some not. no problems sealing at all.
Try putting loads more sealant in there. I agree that runnign tubeless, UST or not, without sealant seems a bit daft.Posted 8 years ago
Good point Doug. Not leaking, it just totally fails (somewhere) on the seal after I pump it up. Since I fitted the tubeless setup on that bike though, I haven't done any real distance bar on the drive to move the sealant around, plus turning the pedals when it's on the stand. Each time I've refitted it I've not ridden it…just pumped it up. I will put some miles on it and see how it fares! I don't really fancy it going bang on a downhill somewhere though.Posted 8 years ago
I'm with the cynic-al! I think you need to ride it to get the sealant moving around and to the bits it needs to get to. I'd take it easy and not go too far but I wouldn't be too worried about a rear tyre going bang, I've had it happen a few times and it wasn't too traumatic!
Hope this sorts if for you!Posted 8 years ago
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