vledaD

What the title says. I'm preparing to sell my bike and would like to measure it so i can tell potential buyers what size it is.

If anyone is interested its a fuji espree.

vledaD

nevermind i got it. mods you can delete this post, its useless.

OLDYELLR

Just for those who are confused, there are two ways bike sizes are quoted:

1. Children's bikes and old balloon tire bikes are described by the wheel size. People not too familiar with bikes often measure them that way too.

2. The "proper" way to measure a bike is by the seat tube dimension.

(a) If this dimension is given in inches, it's usually measured from the centre of the bottom bracket axle to the top of the seat lug. (c-t)

(b) If it's in centimetres, it's usually from the centre of the BB to the intersection of the top tube and seat tube (c-c), but it could be as in (a), so make it clear if you're describing a bike and ask if you're not sure.

riva

Stand-over height and top tube length don't hurt either, as long as the tape measure is out.

OLDYELLR

Yes, I forgot top tube length as a secondary measurement. Usually it's the same as the seat tube, except for small and large frames. While it can often be compensated by using an appropriate stem length, it's important for people who may not be "average" and for avoiding oddball frames.

Knowing stand-over height is useful for avoiding a bike that may be too large, but it's meaningless for mountain biles and non-vintage "funny" bikes with tiny one-size-fits-all compact frames and sloping top tubes.