Gears slipping. HELP needed!.
Hi, My bikes gears have started slipping when going uphill, i adjusted the derailleurs to make sure their working OK, then i took the bike in for a full service with new cables etc and got all the gears adjusted perfectly. They carried on slipping, so i looked on the internet and found that it could be the chain or sprockets but their all in good condition.
Sorry for going on about it, but its really annoying me especially as everything is how it should be.
Any help/suggestions wanted...
Thanks,
Alex