Have you looked into a fixed gear with a good gear ratio? No extra gears, low maintenance, light bike & you only need a front brake. You can get pretty big fixie frames nowadays? Lube the chain, keep the tires pumped, and adjust the chain when it starts to have freeplay (takes a couple of minutes to do). That's as low-maintenance as it gets!What would you point me towards if I'm looking for is a low, low maintenance commuter?
Bonus: I love commuting with it because I can just trackstand at red lights