25 miles both ways in the city.
I average around 15.5-16mph in the winter with (I think I last counted) 74 lights plus a couple hills. Last summer I was averaging 15.5-16 in the warmth with a few 17 days. I think I can push close to 17-18 this summer. I'm so proud, I'm improving.

Ironically the speed's just about the same with my 18lb road bike or my 35lb mtb.