Hey all
A 19c Continental on a Shimano RS-50 front wheel keeps puncturing tubes (looses air in a matter of hours).
Cannot for the life of me find the cause so any input would be useful, so far I've done the following:
Gone through 3 new inner tubes
Spent 20minutes under a spot light checking the tyre for any debris or splits, inside/out/sides - nothing
Gave the wheel and rim a further check - nothing
But to no avail!
I'm close to using a different wheel but I refuse to be beaten!
Thanks

