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Help w/ Bike sizing please(6 posts)

Help w/ Bike sizing pleaseMtnbykerMike
Aug 17, 2002 8:12 AM
I've never had a road bike before, but am looking to buy one. I am 5'11" to just under 6'0 tall. I need help on the proper size bike to buy. What size do I need? I have a Large Specialized FSR mtn. bike if that helps any. Thanks for all your help.

Mike
re: Help w/ Bike sizing pleasehoopshot
Aug 17, 2002 11:35 AM
Your overall height is not as important as your inseam
measurement. I would try going to www.wrenchscience.com
You can enter a set of measurements and they will give
you a recommended frame size as well as some other size
info. One word of warning -- different manufacturers do
sizing pretty differently. I just got a 55cm Bianchi
Campione, and the distance to the top of the top tube
is really 53.5cm. The 55cm is to the top of the seat
tube. I was originally looking at a 53cm Bianchi and
was surprised that it felt too small until I looked at
their frame geometries more closely. Have fun shopping.

--Will
re: Help w/ Bike sizing pleaseRickC5
Aug 17, 2002 12:41 PM
As hoopshot said, its your inseam that will primarily determine the size frame you buy. You need a couple of inches clearance between the top tube and your crotch. You will be interested in what's known as the "stand-over height", which is the distance between the top of the top tube and the ground. This will vary from manufacturer to manufacturer, even on bikes with the same size frame (e.g. 57 cm). I'm 6'0", with an inseam of 32". I find that a 57 or 58 cm fits me best, but leaves minimal clearance. You might feel more comfortable on a slightly smaller frame, say a 55 or 56. BTW- top tube lengths will also get longer on taller frames, so that can make a difference too. Good luck!
A couple of inches?filtersweep
Aug 17, 2002 1:09 PM
I don't think I'd go that far...
A couple of inches?got2ryd
Aug 18, 2002 3:43 AM
you could have that much clearance on a compact frame as long as you could handle the drop to the bars.
re: Help w/ Bike sizing pleasegot2ryd
Aug 18, 2002 3:41 AM
go to a reputable bike store and ask lots of questions. better than that, go to a couple and compare. get sized and then start test riding. test ride different models and frame materials in your price range. once you get into this, you will find the ride that suits you best. here is a link to some sites that can help you with fitting questions....http://psycle-therapy.great-ride.com/fit_links.htm (i got this link from a post here)
there is also a discussion topic here on this site called "idiots guide to bike fit". read that one, its interesting.
good luck in your search and have fun.