Roubaix size
08-28-21, 08:55 PM
#2
Senior Member
Join Date: Jul 2013
Location: Nor-Cal
Posts: 3,767
Bikes: lots
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1958 Post(s)
Liked 2,932 Times
in
1,489 Posts
There is no such thing. If you want to convert 21" to cm...well, I'll let you google that.
Likes For cxwrench:
08-29-21, 07:48 AM
#5
old newbie
Thread Starter
Join Date: Nov 2009
Location: Fort Worth, Texas
Posts: 863
Bikes: Specialized Roubaix
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 541 Post(s)
Liked 357 Times
in
181 Posts
He just replied to some questions. He is 62 and I an 510. He said the seat might need to be all the way down to fit me. I am thinking the bike is too tall for me.
08-29-21, 08:58 AM
#6
LBKA (formerly punkncat)
Join Date: Jan 2010
Location: Jawja
Posts: 4,299
Bikes: Spec Roubaix SL4, GT Traffic 1.0
Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 2208 Post(s)
Liked 960 Times
in
686 Posts
I am 6'3" with (what used to be) a 34" inseam. I should probably ride a ~60, but chose to have a 58cm Roubaix due to it's geometry, and to help me with getting on and off with my prosthetic.
I would imagine that at your height you are probably looking for a 54 or 56.
I would imagine that at your height you are probably looking for a 54 or 56.
08-29-21, 09:12 AM
#7
I'm good to go!
Join Date: Jul 2017
Location: Mississippi
Posts: 14,985
Bikes: Tarmac Disc Comp Di2 - 2020
Mentioned: 51 Post(s)
Tagged: 0 Thread(s)
Quoted: 6193 Post(s)
Liked 4,808 Times
in
3,316 Posts
If you rode a 21" something and you are trying to base that for your next bike, then don't.
Even if you knew the CM size of a bike that fits you then that same number may not be the size of another model. The manufacturers tell you what size or size range they think you'll fit on of their bikes. But it is model specific. The size bike in one model may not be the size you need in another model.
Even if you knew the CM size of a bike that fits you then that same number may not be the size of another model. The manufacturers tell you what size or size range they think you'll fit on of their bikes. But it is model specific. The size bike in one model may not be the size you need in another model.
Last edited by Iride01; 08-29-21 at 09:34 AM.
08-29-21, 09:23 AM
#8
Full Member
You have to be really careful with non-bike people measuring things. That "21 inch" could mean anything, if my craigslist forays are any indication.
The two numbers that matter the most, to me at least, are standover -- which requires proper tires, inflated -- and effective top tube lenghts, i.e. horizontal distance between seat post and stem.
With those in range, I'm good... case in point, I've done long, comfortable rides on a 52 cm Bruce Gordon BLT, a 23" canonndale Touring, and a 60 cm Cannondale R200.. My winter bike is a 25" Cannondale H400, which is great to ride, except the standover is a little cozy.
The two numbers that matter the most, to me at least, are standover -- which requires proper tires, inflated -- and effective top tube lenghts, i.e. horizontal distance between seat post and stem.
With those in range, I'm good... case in point, I've done long, comfortable rides on a 52 cm Bruce Gordon BLT, a 23" canonndale Touring, and a 60 cm Cannondale R200.. My winter bike is a 25" Cannondale H400, which is great to ride, except the standover is a little cozy.
