I usually get the tube in, get the tyre on over the bead, put a few PSI in and then pinch the tyre, pulling it away from the rim and look to check the tube is not visible, so cannot be pinched between the tyre bead rim. evidently this is not quite good enough and I must have nicked it.
I usually get the tube in, get the tyre on over the bead, put a few PSI in and then pinch the tyre, pulling it away from the rim and look to check the tube is not visible, so cannot be pinched between the tyre bead rim. evidently this is not quite good enough and I must have nicked it.