I recently purchased and fitted a pair of Schwalbe City Jet 26" x 1.5 tyres and matching inner tubes to my old mountain bike. The rear tyre fitted perfectly but the front tyre doesn't sit well on the rim. The rims have no markings but look quite similar: they are cheap, budget wheels.
It would appear that the front tyre is too tight on the rim and the beading tries to stay in the channel for the spoke nipples rather than spreading out across the rim. One small section of tyre stays in this channel -- at least partly -- and therefore makes for a lumpy ride.
I have tried reseating the tyre several times and changing the rim tape to no effect. I have also tried manipulating the tyre under various states of inflation. I would like to try some lubricant on the tyre bead (we used to use something like grease or soap to get tractor tyres on and off when I was kid) but have nothing suitable to hand.
Any suggestions or do you think this is just the wrong tyre for this rim? More generally, what does one have to check to ensure rim and tyre compatibility for mountain bike kit?
Thanks.
It would appear that the front tyre is too tight on the rim and the beading tries to stay in the channel for the spoke nipples rather than spreading out across the rim. One small section of tyre stays in this channel -- at least partly -- and therefore makes for a lumpy ride.
I have tried reseating the tyre several times and changing the rim tape to no effect. I have also tried manipulating the tyre under various states of inflation. I would like to try some lubricant on the tyre bead (we used to use something like grease or soap to get tractor tyres on and off when I was kid) but have nothing suitable to hand.
Any suggestions or do you think this is just the wrong tyre for this rim? More generally, what does one have to check to ensure rim and tyre compatibility for mountain bike kit?
Thanks.