Dec 23, 2003 1:13 PM
|When people quote frame sizes in relation to the seat tube length, are they usually referring to the centre-to-centre measurement or centre-to-top (of seat tube)?|
|Both, and then some||Dropped|
Dec 23, 2003 1:55 PM
|Some bike makers give the measurements c-c, others c-top of the top tube, and still others c-top of the seat collar. Some provide a couple of these measurements (e.g. Colnago's geometry charts).
So, when evaluating the size of a frame, you always want to know which way it is measured.
|And even more||Dave Hickey|
Dec 23, 2003 2:08 PM
|With compact frames, some manufactures list them with "virtual" seat tubes. The frame might have a 45cm seat tube but it fits like a 52cm so they list it as a 52cm|| |