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Measuring tt and chainstay lengths...

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PaulM:
When measuring tt and chainstay lengths where exactly are the measurements taken from,
I've got some frames I want to try and measure as im not sure of there sizes,

Cheers

Paul

se-bmxer:
Top tube measure from the center of the seatpost tube to the center of the headtube in a straight line alont the toptube

Chainstay is from the center of the BB tube to the middle of the rear drop outs (i think)

SaMAlex:
Like SE-Bmxers said: For TOP TUBE you would normaly measure along the top tube, from the center of the headtube to the center of the seat tube.

BUT: The problem is that if your frames have different seat angles, AND/OR,  if the top tubes are different heights (Modern frames  have very low top tubes that are at more of an angle than an older frames) you will get different measurements for what might actually be closer sized frames.

Can ... open ... worms ... everywhere

motomagII:
no dont do it alex this has been done done and done to death but is correct ive ridden 21 top tubwe and now 19.5 top tube and they feel almost the same as headtube angle etc makes big difference

sparky:
Like this for the top tube from what I've always been advised :daumenhoch:

http://www.retrobsession.com/diamondback%20-%20measuring.html

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