How do you tell what size your bike is?

TJF

New member
I'm trying to sell my Cannondale M300(which I've never rode), but the website says that it can be in the following sizes:(14, 16, 18, 20, 22")
... I don't know where to find that out. I've looked all over and all I can find is the brand names, a few model numbers for some of the stuff on there, and that the tires are 26x2.10

...Where do I find it?
Thanks Mr.Premium!
Is there any way to find the size on the bike? Perhaps using measurements? I'd rather find it out today, fast, without having to pack it up and bring it somewhere.
Smitty, that really doesn't help. -_-
Glitch report: The "Thanks" and the "is there any way" should be swapped. It goes:
"Is there any way?"
"Thanks!"
"Doesn't help smitty"
[this]
 
Usually there should be a sticker somewhere but I assume there is none, so what I would do is measure it myself.

Find a ruler or something and measure the tube where your seat goes into and that would be your size.
 
easily enough,measure from the top of the seat post to the bottom backet,straight down and that will give you the size of you bike in inches,


SIMPLE
 
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