Originally Posted by
chas58
Wonderful! I was thinking the same. If you are in good shape, that will certainly help your top speed. I like 42x16 for commuting. Good acceleration and braking, and good practice spinning. I can hold 20mph all day long with it. It ain't a top speed gear though. 24mph is a lot of rpm to hold for that gear.
I've been hanging out with an ironman training idiot - at 42-16 I couldn't spin fast enough on the flats, let alone on a downhill - 46-16 is a pretty huge difference in my opinion. I'm glad I didn't go up to 48 though - I think that what I have is about as much as I would want to try and spin on real roads, and I can actually keep up now. I dont know if I am "good" shape right now, but its a lot better than it has been for a long time now.
Dave