I was out on my MB at the weekend (first time for a very long time) and whenever I dropped the front cog into the smallest cog it kept getting jammed against the frame after about 2 seconds of cycling - not slipping off to the left (ie being shunted too far left), but slackening off on itself until it jammed back on itself.
Any ideas?
Hope this is clear.
Any ideas?
Hope this is clear.