Gearing

I've got into the habit of trying to convince people to shun the fashion for deep V rims because I'm convinced that that extra rim weight is putting extra pressure on the knees at each set of traffic lights.

rotational mass, heavier wheel make it slightly harder to accelerate in traffic light (in theory).

I'm in the same boat, hell I switch my 52/42 crankset for a 46/30 and actually notice my journery time improved in London, wack a 13-24 freewheel on it and it's a great countryside gearing.