|Colnago Standover heights||Greg P|
Sep 19, 2001 7:43 PM
|Anyone know the standover heights of the 53 and 54 cm colnagos? I've been looking at the geometries, trying to decide which frame size to get. I currently ride a 52cm(C-C) with a 53.5 TT. The trialtir website has the 54 listed as equivalent to a 52 (C-C). I wonder how accurate that is.
Here's the website where I got the info. Their geom chart is much better than the ones in catalogs. I'm thinking about a MXL or possibly and ovalmaster.
Any advice or personal measurement/experience would be much appreciated.
|re: Colnago Standover heights||cyclequip|
Sep 20, 2001 3:18 AM
|All Colnago measurements are C-T. Rather measure on the TT length - in this case it wld mean a 53cm frame by Colnago standards.|
|re: Colnago Standover heights||zero1|
Sep 20, 2001 3:52 AM
|i just purchased a colnago mxl...i am 5'6" and have always rode a 50cm bike and that is what i measured for the colnago and it fits perfect...good luck...ride safe, gary|
|check the head tube size...||colker|
Sep 20, 2001 5:40 AM
|that will give you an idea on sto height.. since colnagos have steeper seat tubes, the tt comparison won't work very well. a slacker seat tube angle on a bike will be compensated by a longer tt but the front end (bb- feont wheel axle) will remain the same. |
given a "normal" lug construction and a head tube size numberyou can eyeball the colnago and guess how it's going to fit you compared to your bike.
correct me if i'm wrong...
Sep 20, 2001 5:53 AM
|I always check the head tube length when buying a frame. Regardless of how the frame's size is measured, the head tube length and BB height control the saddle to bar height difference. If the head tube is too short, steering tube spacers or a high rise stem will be required.|
|easy to calculate....||C-40|
Sep 20, 2001 5:49 AM
|The trialtir geometry chart has some siginificant round-off errors on their c-c dimensions. The frames are actually measured c-t. My 55cm C-40 has a standover of 79.5cm, which is exactly what you get with the formula: standover = bottom bracket height + (frame size x sin STA), where STA is the seat tube angle. The calculated standover is 76.7cm for the 52cm and the 77.6cm for the 53cm. If you use a threadless headset, it's best to keep standover clearance to no more than 3 or 4cm (to weight bearing contact). Any more and you'll need head tube spacers or a high rise stem to achieve less than a 10cm saddle to bar height difference.|
|The standover height of my 54cm Colnago Crystal||Live Steam|
Sep 20, 2001 6:42 AM
|is 30.75" exactly. I am 5'-9" tall and this is a little taller than I would normally want, but the TT length fits me perfectly, as does my seat position, relative to the pedals.|| |