These articles are all part of our series: "From the workshop". In these series we write brief notes on bicycle maintenance, ranging from wiring of dynamos to basic service of internal gear hubs. These articles will sometimes deal with the most obvious of maintenance tasks, but still we find them useful as reminders for our future selves, and perhaps also for some of you other amateur mechanics out there. In between there are also the occasional product review (unsponsored of course..)