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Caad 7 head tube height! Please help...(12 posts)

Caad 7 head tube height! Please help...castrello
Nov 27, 2002 9:18 AM
Whats the length/heigth of a caad 7 head tube, size 58 and 60? I´d like to compare it to my current bike, but my lbs only has a size 56.
should be 2cm & 4cm longer...C-40
Nov 27, 2002 9:40 AM
The advertised standover height increases in 2cm increments for each frame size. The head tube length should increase by 95% (the sine of 73 degrees) of this amount. For all practical purposes the head tube length should increase the same amount as the frame size.

Just remember when comparing total length that the caad 7 has an integrated headset with a 6mm stack height. A conventional headset will have a stack height that's about 2cm taller. In other words, a 160mm conventional head tube will place the bars at about the same height as a 180mm integrated head tube.
re: Caad 7 head tube height! Please help...werdna
Nov 27, 2002 3:09 PM
What are your dimensions? I am trying to make the same decision. I'm 6'1.5". I don't have an accurate inseam measurement but I'm mostly legs. I'm nervous that if I get the 58 I will have a big drop from the saddle to the handlebars.

-Andrew
re: Caad 7 head tube height! Please help...divve
Nov 28, 2002 2:42 AM
I'm 6'0.6" with a 34.45" cycling inseam and ride a 58 CAAD7. The drop in my bars is about 3.54" (9cm)(I've cut mine down in addition as well). It's hard to see now but I think the standard drop is about 6-6.5cm with my current saddle height? With your length that would be considerably more. I suggest test riding both sizes first. The 58 might very well be too small for you.
re: correction...divve
Nov 28, 2002 2:49 AM
make that 34.64 inseam.
re: correction...castrello
Nov 28, 2002 4:47 AM
Well, Andrew, this is scary, ´cause you could be me! Im 186 cm (about 6´1´2?) with a 90 cm inseam (long legs). Based on a top tube comparison with my old bike, I should go for a 58, but since my old bike is a size 58 center-center the standover is pretty much the same. I havent decided yet, but I think that I will go for a size 60 with a slightly shorter stem than stock, maybe a 110 mm.

The facts:

old bike

tt 57
stem 12.5
58 c-c (about 60 c-t)
standover 84

I feel that I would like a slightly longer (but no lower!) cock-pit. I have no trouble reaching the bars (I´m 24 years old, flexible and no back problems) but I dont want them any lower. My old bike also has a treaded stem, and the caad 7 has an integrated headset, making the head tube area even lower. I think.

caad 7 58

tt 57.5
stem ?120 mm?
58 c-c
standover 82.9

caad 7 60

tt 59
60 c-c
standover 84.2

also, STA matters quite a bit, but theres no big differences there... 73 (old bike), 73 (caad 7 size 58), 72.5 (caad 7 size 60) which makes the diff in reach less than the diff in tt length. Also the diff in standover makes the reach shorter since there´s less drop.
re: correction...divve
Nov 28, 2002 5:32 AM
Note that the CAAD7 58 and 60 frames are C-T measurements not C-C.
re: correction...castrello
Nov 28, 2002 9:08 AM
Oh, yeah, I know that, it´s just my spelllign that´s confusd.
re: Caad 7 head tube height! Please help...PeteWorc
Nov 28, 2002 8:47 AM
If it helps, I am 6'2" and ride a caad5 60. The fit is just right.
re: Caad 7 head tube height! Please help...castrello
Nov 28, 2002 9:14 AM
I think it migth help me. Do you know your inseam? How long is the stem? I´ve seen that the R 1000 comes with a seat post with set back - do you use a similar seat post or do you use one that´s straigth?
re: Caad 7 head tube height! Please help...werdna
Nov 28, 2002 8:27 PM
I have a 60cm CAAD 3 right now and it has always felt a bit too big. It has an 11 CM stem and the reach has always given me problems. It's somewhat uncomfortable to ride in the hoods because I have to reach so far with my arms. I'm almost definitely going to get a 58 or 59. The only annoying thing is that if I decide on the 59, Cannondale only sells it as a frame. I'm going to try on the 58 at my LBS and see how it feels. Hopefully the drop from the saddle to the handlebars will not kill my back. I'm going to use this bike for racing though.
-Andrew
re: Caad 7 head tube height! Please help...castrello
Nov 30, 2002 2:39 AM
Yeah, I would probably go for the 60 if the TT was 1 cm shorter. I know I could always shorten down things with a short stem, but hearing that you use a 110 mm stem (that´s as short as I´d go) I´m kinda steering towards the 58. I´d rather use the 58 with a 130 mm stem, than the 60 with a 110 (with that set-up the reach would be pretty much the same.) I´m also concerned with the drop from the saddle, but I´m going to measure my old bike and then I´ll compare that with divve´s measurements. I´m actually not sure if I´ll have the possibility to test ride... which kinda sucks...