I just spent a few days overhauling my aging mountain bike. It was an interesting (and at times frustrating) process, partly due to this being the first time I’ve done anything like it, and partly due to the apparent lack of maintenance manuals for the bike or many of its components. I thought it might be useful to put together a brief Marin Bobcat Trail maintenance manual, in the hope it’s useful to someone else who owns the 2008 or 2009 edition of the bike. I’m new to this, so it’s probably a laughable effort in cycling circles, but it’ll be useful to me next time I overhaul the bike anyway. Feedback welcome at the address given in the document!