Bump on the tyre

Mr Bungle

Thats the only way I can think of describing it. Was going for ride today, pumped up both tyres and span the wheels as usual, and the front one looked buckled.
.
Closer inspection showed the rim was perfect, but the type 'bumped' out a little to the left (when looking down).

I deflated and inflated , but no better.

I even went for a 5 minute ride, but got paranoid as it did not improve the situation.

Any ideas what this could be, its obviously stopping me riding, which is annoying for something I though would have been so simple.

Cheers

Shaun20

Double check the tyre bead is seated correctly on the rim. (assuming they are clinchers) Let all the air out and inflate to around 20 psi or so then check the tyre is seated on the rim, and fully inflate. Hopefully thats the problem. If not maybe a faulty tyre?

Dmak

Any doubt, replace it. Simples

Bumps occur from heavy knocks, pot holes, censored roads. It probably means that the woven membrane beneath the rubber is broken, this could fail at any point causing a blow out and you to slide down the road on your face. I must check mine!

Philby

Had similar situation recently after a 70 mile ride - found on close inspection that the tyre had worn through to the canvas in a very small and hardly noticeable area. New tyres are the solution - not worth risking it IMO.