I have been wanting to expand my basic knowledge and techniques for a while now. What has put me off is the price of some of the courses, until I came across these events run by TfGM (Transport for Greater Manchester).
From beginners to intermediate, there should be a date and venue to suit. There are different courses which show and teach you from the very basics like how to ride a bike, to how to adjust your gears or change a cable.
I have put myself on the list for the intermediate course and will add a blog about it, IF I manage to get a place and attend.