Arde,

Hmm - so far 2 of the 3 regular commuters are using mountain bikes (3 of 4 if we include me). From what I read / observe, that is unusual for commuters but I guess doesn't surprise me too much about folks on this forum. Your commute must be relatively short, like mine. I'm pretty sure I'm not in the supposed target range of 75 - 90 rpm - I tend to hammer the pedals too hard (stay in too tall a gear). I'm working on getting my spin rate up - this is a real (useful) learning experience for me so far.

I honestly never noticed all the folks who bike commute at work until I started up - the rack in the courtyard is full plus a few more bikes leaning up / inverted (lucky me that I have inside space to store). The two big bike nuts here do not bike commute (I have no idea why one doesn't) and AFAIK only one bike commuter rides more or less year-around (he skips rain if possible).

Ride safe.

Tom