Emmm, I cycle one way 20min for 5km on a mountain bike, and I think that is not slow. The fastest I can get is 15min if I am lucky.

The profile is not that flat, just a little bit hilly. But I have to cross a few junctions and traffic lights, and three schools.

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Added on November 14, 2011, 2:42 pmFyi, I cycle in a city.

This post has been edited by billylks: Nov 14 2011, 02:42 PM