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Does Size Matter?....650 vs. 700?(4 posts)

Does Size Matter?....650 vs. 700?Texican
Jan 30, 2003 11:19 AM
As I research the purchase of a new bike(likely I'll build up a frame), I am confronted with the wheel size question. Being a rider of shorter stature, I can select from a number of frames in either a 650 or 700 wheel size. One arguement for the 700 sized wheel is that it maintains its momentum better while coasting, thus allowing me to maintain speed with a group better than I would on a 650 wheel. Assuming frame fit is equal, what's a better wheel size?

Thanks for the help!
Counter argumentBill RHIT
Jan 30, 2003 11:33 AM
Since there are two sides to every story....

Since a larger wheel will maintain its speed better, it is also that case that a small wheel will allow for easier acceleration and sprinting.

Basically it comes down to convenience. Unless you are substantially smaller in stature I'd say you can handle a 700 wheel and would be better off in the future with it in respect to parts/tires/tubes/manliness, etc...
The incredible lightness of being...KeeponTrekkin
Jan 30, 2003 11:36 AM
This forum can be obsessed with weight and it's pretty unusual to see weight suggested as beneficial (maintains momemtum better). I'd focus attention elsewhere...

You get significantly lower gearing with the same chainring / cassette combinations, or you use triathelon gears to get back to "normal" road bike gearing. If you want lower gearing this is a good thing. If you want "normal" gearing, you're probably better off with "normal" 700mm wheels (really 622mm, but that's another story). IMO

KoT
hey............i asked a similar question,.........mealex
Jan 30, 2003 8:19 PM
I did..........if you type "mealex" into the search function, and look for, "a rather naive physics question" post, then i think you'll find that the good, and knowledgable, folks on this board provided some valuable help there.