How to measure a toptube length??

[sam hudson]

I know this sounds like a reeeeaallllly stupid question but where do you begin measuring a toptube? I measured a toptube yesterday that was supposed to be 21.25 and it only worked out if I took the measurement from mid-way thru the headstock tube (whatever...bit where the headset goes) to halfway thru the seat tube.

Ta 

[spesh]

I WOULD SAY THAT WAS CORRECT

[sam hudson]

 

That was quick....ta.

[moley]

I like it when a noobie asks a question and ends up answering his own question!! 

..........but dont keep doing it because everyone will feel unwanted!!! 

We're a needy bunch!!