Puncture on the inside of the tube- pinch?
Puncture on the inside of the tube- pinch?
Author
Discussion

Steve vRS

Original Poster:

5,395 posts

270 months

Monday 2nd September 2013
quotequote all
Just replaced my punctured tube which was holed on the inside, i.e. the spoke side.

There are no sharp edges or protruding spokes on the wheel and nothing in the tyre.

I think the flat happened after hitting a pothole and the tyre went down straight away.

Was this a pinch puncture do you think?

TA

Steve

47p2

1,905 posts

190 months

Monday 2nd September 2013
quotequote all
Is the rim tape in good condition?

Steve vRS

Original Poster:

5,395 posts

270 months

Monday 2nd September 2013
quotequote all
Yes.

Disco You

3,748 posts

209 months

Monday 2nd September 2013
quotequote all
Sounds like a pinch. Check your pressures more often / try running higher pressure.

ClaphamGT3

12,237 posts

272 months

Monday 2nd September 2013
quotequote all
I'd look 1st to your rim tape too. Even if it looks/feels fine, I'd replace it anyway to be on the safe side. Also make sure you don't have a loose spoke.

upsidedownmark

2,120 posts

164 months

Monday 2nd September 2013
quotequote all
If it's a pinch, I'd expect the hole to be a small nick out to one side of the tube (i.e. near the edge of the rim). Normally it's a 'snakebite' - 2 holes one on each side.

If it's the rim tape, usually a central, larger hole - sitting in the rim bed. I went through a phase of this with some HED wheels before I realised the rim tape was too narrow to fill the bed - while it 'covered' the holes there wasn't much sideways overlap, and under duress it would blow out into the spoke hole.