My wife has an old Moulton bike. I was inflating her tyres (small wheels, tyre imprinted ‘50 pounds’, when the rubber surround of the Schrader valve started inflating also.
It all seems quite airtight, but I don’t think it should do this, and I wonder why it is happening, and what I should do - replace the inner tube, or just let it get on with it?
I don’t want it to blow out when we are a few miles away from home.
Anybody seen this? Any thoughts and advice?