My Cat Eye Odometer/Speedometer thingy says my average is usually between 15 and 17 mph on my 16 mile commute. Single Speed bike.

There's a bike club that goes for rides on the weekends, and they say that their 'slow' group averages 15mph, and their faster group averages 20-25mph. I'm guessing these are geared bikes.

I don't want to ride with the slow group. I want to ride with the big boys, but I don't want a geared bike.

Should I load up on frozen spinach and caffeine?