I wonder of anyone can clear this up for me. My Giant is a medium size due to the frame geometry and the fact that Giant label their sizes as S, M, L etc. I am 5 feet 11 (and a bit) tall and their medium fits me perfectly.
However, if I want to buy a different bike that quantifies its size more traditionally how can I work out which size is comparable to the medium of my Giant? I have been looking at a Specialized Allez and am not sure whether 54 or 56 cm is right.
I wonder of anyone can clear this up for me. My Giant is a medium size due to the frame geometry and the fact that Giant label their sizes as S, M, L etc. I am 5 feet 11 (and a bit) tall and their medium fits me perfectly.
However, if I want to buy a different bike that quantifies its size more traditionally how can I work out which size is comparable to the medium of my Giant? I have been looking at a Specialized Allez and am not sure whether 54 or 56 cm is right.
58cm would be closer for a 'traditioal' frame, IMHO.
I wonder of anyone can clear this up for me. My Giant is a medium size due to the frame geometry and the fact that Giant label their sizes as S, M, L etc. I am 5 feet 11 (and a bit) tall and their medium fits me perfectly.
However, if I want to buy a different bike that quantifies its size more traditionally how can I work out which size is comparable to the medium of my Giant? I have been looking at a Specialized Allez and am not sure whether 54 or 56 cm is right.
Just a thought.
I would suggest measuring the top tube length, not the seat tube. The latter can always be adjusted with the seatpost length but the top tube can't and is probably the most important part for fit.
"Tony Raven" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
Paul said:
I wonder of anyone can clear this up for me. My Giant is a medium size
due
Quoted message said:
Quoted message said:
to the frame geometry and the fact that Giant label their sizes as S, M,
L
Quoted message said:
Quoted message said:
etc. I am 5 feet 11 (and a bit) tall and their medium fits me
perfectly.
Quoted message said:
Quoted message said:
However, if I want to buy a different bike that quantifies its size more traditionally how can I work out which size is comparable to the medium
of
Quoted message said:
Quoted message said:
my Giant? I have been looking at a Specialized Allez and am not sure whether 54 or 56 cm is right.
Just a thought.
I would suggest measuring the top tube length, not the seat tube. The latter can always be adjusted with the seatpost length but the top tube can't and is probably the most important part for fit.
Tony
Tony
Thanks for that. Out of interest when a 'trad' frame is measured at, say, 56 cm or whatever, what does that measurement actually represent? Is it the TT length or SPT length? I am just a little cautious in that the Giant is a compact at a medium but the Specialized is also with much less of a TT slope (yet quoted in cm rather than S/M/L etc) - I just want to make sure I am comparing like with like.
Thanks for that. Out of interest when a 'trad' frame is measured at, say, 56 cm or whatever, what does that measurement actually represent? Is it the TT length or SPT length? I am just a little cautious in that the Giant is a compact at a medium but the Specialized is also with much less of a TT slope (yet quoted in cm rather than S/M/L etc) - I just want to make sure I am comparing like with like.
The "conventional" measurement is the seat tube length but it can be measured in all sorts of different ways so even that measurement is not comparable from maker to maker. Sloping top tubes are a particular problem with such a measurement because some estimate has to be made of where the top tube would join the seat tube if it hadn't been sloping.
The two which matter for you are top tube length and length from pedal axle to top or saddle with the crank downwards in line with the seat tube. The latter is easily adjusted with the seat tube (and to a minor extent, crank length) the former only by changing the stem which will affect the handling. The only way to do it is to look up the manufacturer's measurements on the web or take your tape measure out.
"Paul" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
I wonder of anyone can clear this up for me. My Giant is a medium size due to the frame geometry and the fact that Giant label their sizes as S, M, L etc. I am 5 feet 11 (and a bit) tall and their medium fits me perfectly.
However, if I want to buy a different bike that quantifies its size more traditionally how can I work out which size is comparable to the medium of my Giant? I have been looking at a Specialized Allez and am not sure whether 54 or 56 cm is right.
