I have recently started to ride my mountain bike again which is the first time in about ten years. The first couple of rides were fine but on my third journey my chain kept slipping which became danderous for me to ride. Ive oiled my chain as the joining link seems to stick. Could this link be the problem?
Also when I used my back breaks, one of the break pads doesn’t return to it’s original position and therefore rubs on the wheel. Sould I used wd40 on the break fixing?
TBH, after leaving a bike for such a long time, I’d spend a few hours just stripping it down to whatever level you’d understand and rebuilding it with freshly lubed bits ….. and be prepared to spend a few bob on consumables, like chain, cables etc.
Even though it hasn’t been used during the long wait, things do tend to deteriorate.
I’d start as follows:-
Re-lube all cables. WD40 and GT85 are quite acceptable.
Check and possibly replace brake blocks
Strip and re-build brakes themselves
Clean and re-lube the drive train (cassette, chain, chainrings)