i had a problem with the chain slipping on my 9 speed mountain bike, mainly on the smaller gears so i checked the chain, decided it was worn and changed it for a KMC X9 one, previous chain was Shimano. Anyway, i've been out on the bike today and the problem is worse, the chain slips in every gear now, i've checked back for related posts and concensus seems to be that the next place to look is the cassette but it looks fine to me. I took some pics and hopefully you guys can give me your opinions on the cassette if the pics are good enough.
The RD is quite old and the springs don't seem as strong as they were so i screwed the adjuster screw in all the way and the jockey wheels look quite worn too if either of these things are relevant.
Thanks for any help.