What tools are most important on an all-in-one bike tool for a commuter? My commute is about 25km/day.  I have a cheapish hybrid bike with Shimano gears, v-brakes and SPD pedals.  I carry a small hand pump and spare tube.

What do I need in a bike tool/ multitool or other spares?
Tire levers
Appropriate wrenches to tighten loose bolts, adjust brakes, etc. Probably means a few sizes of Allen (hex) wrench. Metric. Smallest bolts are probably on brakes and biggest under saddle, but varies.


The rest, like a chain tool, are a lot less likely to be needed.