Bizarre puncture !

[cornishcarlos]

Ok, haven't had a look at the tube yet as it just happened.

Wanted to know if anyone can guess a reason before I investigate, or if anyone has had a similar experience.

Bike is at home, not been used for 2 days. Tyres at 40 PSI front, 45 PSI rear. Kept inside out of the sun.

So, just came back inside the house and walked past my bike. Heard 4 or 5 short sharp air bursts and then a continuous air leak. Tyre goes flat in front of me ! Nothing visible on the outside of the tyre to suggest a reason.

Any ideas... Will pop the tyre off later and have a proper look.

Cheers

[oldsailor35]

You were'nt riding it at Silverstone over the weekend by any chance were you ?

[dogpoo]

The cheap inner tubes they use here normally give way at the valve, it can happen anytime!

[cornishcarlos]

Nope, wasnt at the valve but it was a cheap tube...

Found just 1 hole on the inside and no sign of anything inside the rim to cause it !!

Might get some new rim tape anyway and a couple decent tubes.

[CobraSnakeNecktie]

talcum powder seems to help prevent rims from damaging tubes as much.

Just dust up the tube before install. It sounds corny but it does seem to help tube longevity.

[fdimike]

Talcum powder acts as a dry lubricant and allows the tube to move around without chaffing. One thing to remember though is to thoroughly clean off the powder before attempting a repair as the patch will not stick.