Puncture on a turbo-trainer WTF

Just rebuilt a mate's geared (sorry) bike which he reckoned punctures all the time.
Took it out for the first roll around the block and the rear wheel punctured (tiny pinhole puncture in middle of tube)
Replaced tube, checked rim for damage etc, checked spokes and put a continental gatorskin tyre on it. Just done 1/2 hour on turbo trainer to check riding postion and the rear wheel gets a flat again.

anyone have any idea what might be causing it, anything else I could check, have I got a haunted wheel?

pinch flat?

That's funny.

Did the first tube that punctured have more than one hole?

Sounds like you've checked the usual suspects: spokes poking through/against rim tape, foreign body lodged in tyre casing, improper tyre mounting (with pinched tube), twisted tube, rough edge around valve hole, broken glass/flints/potholes on turbo roller...?

Or longshot - front mech cable without end cap surreptitiously sneaked behind seat-tube and speared tyre? Fuck knows.

just taken the tyre off again. similar tiny hole puncture (singular) doesn't look like a pinch flat or twisted tube. rim tape fine, and i've just had the turbo roller re-tarmac'd. Could pedalling force cause a seemingly OK spoke to push through if the wheel is not true? I'm clutching at straws here. perhaps my missus is sneaking downstairs in the night and sabotaging my spare tubes?

Make a note of the position of the puncture and see if it's happening in the same place each time?

It won't be the pedalling force, definitely. The spokes are under tension. The spokes would have to be compressed sufficiently to not only go slack but then bend. It simply won't happen, not unless the wheels were made by a monkey.

I've given my wheelbuilding monkey the night off but i'll be having serious words with him tomorrow. The two tubes punctured in completely different places. I'm going to stick a third tube in and try again, new rim tape and another tyre.

use armadillos.

pj use armadillos.

yeah armadillos are quite good at sniffing out the cause of puncture so i hear

is that a new hat?

i want one.

Sorry, have to post it again:

http://www.youtube.com/watch?v=ZwTHVZHqSb0

Classic advert. It did lead to an armadillo addiction though..

thats fnckin hilarious

Sounds suspiciously like the rim tape has worn and the top of a spoke is rubbing on the tube.

Happened to me once, I wasn't amusing, although I wasn't on a trainer at the time!

Try an extra layer of rim tape?

SMEEAR

How awesome would it be if you could domesticate one of them?! Imagine taking that for a walk.

Crunchy on the outside, soft on the inside!

I've seen these on a menu in China...

I've just had something similar happen to me with an Armadillo. The root cause was a little bit of sharp rubber along the inside mould line in the centre of the tyre. Once I'd filed that off, it was fine. Took 3 tubes to work it out, though. D'oh!

could be your tyre levers that are damaging the tube....
thats if you use tyre levers?

some flints / glass you roll over won't puncture your tyre immediately, they can sit in the rubber for week, slowly working there way inwards eventually giving you a puncture...if not that, incorrectly place, non-centred rim rim tape.

mercianary Crunchy on the outside, soft on the inside!

I've seen these on a menu in China...

Madness. (I don't eat any animals anyway, I'm vegetarian)

I know some lettuce that wouldn't think highly of that eeehhh :)

:p