Hello. Today I was riding home and this lady in a nice racing bike well fit zoom pass me. She was just spinning like a mad woman. I'm guessing had bike had at least a 56T chainring but not sure what # cog she was using on the rear. I was going fast already like 30 mph and she was going like at least close to 40mph and was just spinning the cranks.

She finally looked back once when she passed me and probably saw that I was close to her then she changed direction and rode up the avenues instead of riding up the streets #. I was always 2 street behind her and I tried my best to keep up with her but couldn't. If I haven't rode like 30 miles earlier I might have been able to pass her. I was tire and was riding home still at a very fast speed.


Could she be using a very high gear ratio and had strong leg to be able to spin really fast?? Or could it be everything lighter bike and very thin tire, and just stronger rider?? I was on single speed 48/14 and was going like 30 mph on flat pavement with a slight downhill slope.

What do you guys think?