delb0y
Legendary Member
- Location
- Quedgeley, Glos
I've been luckily enough to do a couple of thousand miles since the last puncture, however I had one last weekend as I came down a gentle slope at about 20 mph. There was a bang, a loud but short hiss, and the back wheel went all squiffy on me. Fixed it up, came home and then the fun began.
I took the tyre back off to double check that whatever had caused the hole was gone, couldn't find anything, so put it all back together, leaned the bike up against the garage wall, turned my back and then there was a loud and longer hiss and the tyre went down...
Turned out it was a new hole in a different position.
I put a brand new tube in, put it all back together and went over to the bench to fix the latest puncture.
Bang. Hiss again.
A new hole in my new tube in the same place as the previous new hole. These holes - all of them - are, by the way, on the inside of the tube rather than the outside. Ahhh, thinks I. There must be something on the rim. Close look. Can't see anything but I am lacking decent rim tape. Better to be safe than sorry. In the absence of any such tape a couple of layers of black insulating tape might do the trick. Put it all back together with a repaired tube and it seems ok.
Went for a ride. Ten miles in (and luckily just a few hundred yards from home) bang hiss. New hole. Same position.
Went to the LBS and bought rim tape and a good quality tube. Put it all on. Pumped up the tyre. Leaned it against the wall. Bang hiss. New tube, new hole. Same position.
I went over that rim with a microscope - well with my glasses on. Couldn't see anything couldn't feel anything. Checked all these repaired tubes. Three holes, I think, were in the same place, two were in different places.
Now maybe it's me - maybe I'm pinching the tube as I put the tyre back on (it is a tight fitting combination of rim and tyre) but all but one of these holes are within six inches or so of the valve and as that's the first bit I put back on I'd have thought if I was pinching the tube it would have been opposite the valve where the final effort is needed to get the tyre back on.
In desperation I've put a repaired tube on a brand new wheel which I was lucky enough to have hanging in the garage. It's all pumped up but I'm scared to go in the garage and have a look....Not sure I can face another bang/hiss. The combination of tyre and rim on this new wheel was very easy to fit so I'm hoping no chance of any pinching...touch wood. But I still can't figure out that first wheel and why I should have all these punctures after a couple of thousand miles of happy pedalling.
Apologies for the long post - frustration shared is frustration halved! I hope...
Kind regards
Derek
I took the tyre back off to double check that whatever had caused the hole was gone, couldn't find anything, so put it all back together, leaned the bike up against the garage wall, turned my back and then there was a loud and longer hiss and the tyre went down...
Turned out it was a new hole in a different position.
I put a brand new tube in, put it all back together and went over to the bench to fix the latest puncture.
Bang. Hiss again.
A new hole in my new tube in the same place as the previous new hole. These holes - all of them - are, by the way, on the inside of the tube rather than the outside. Ahhh, thinks I. There must be something on the rim. Close look. Can't see anything but I am lacking decent rim tape. Better to be safe than sorry. In the absence of any such tape a couple of layers of black insulating tape might do the trick. Put it all back together with a repaired tube and it seems ok.
Went for a ride. Ten miles in (and luckily just a few hundred yards from home) bang hiss. New hole. Same position.
Went to the LBS and bought rim tape and a good quality tube. Put it all on. Pumped up the tyre. Leaned it against the wall. Bang hiss. New tube, new hole. Same position.
I went over that rim with a microscope - well with my glasses on. Couldn't see anything couldn't feel anything. Checked all these repaired tubes. Three holes, I think, were in the same place, two were in different places.
Now maybe it's me - maybe I'm pinching the tube as I put the tyre back on (it is a tight fitting combination of rim and tyre) but all but one of these holes are within six inches or so of the valve and as that's the first bit I put back on I'd have thought if I was pinching the tube it would have been opposite the valve where the final effort is needed to get the tyre back on.
In desperation I've put a repaired tube on a brand new wheel which I was lucky enough to have hanging in the garage. It's all pumped up but I'm scared to go in the garage and have a look....Not sure I can face another bang/hiss. The combination of tyre and rim on this new wheel was very easy to fit so I'm hoping no chance of any pinching...touch wood. But I still can't figure out that first wheel and why I should have all these punctures after a couple of thousand miles of happy pedalling.
Apologies for the long post - frustration shared is frustration halved! I hope...
Kind regards
Derek