Colnago geometry

[LegendRider]

Colnago geometry is a horse that's been beaten long past death, but I'll raise the question again.

I have a C50 in 54s (=58cm traditional). Does anyone know the head tube angle, fork rake and trail? The numbers aren't published in the geo charts I find online. It is widely assumed the head tube is slack (~72 degrees) and the trail is greater than average. But, can anyone definitively tell me the numbers?

Thanks.

[Keith A]

I have a 52s (56 traditional) C-50 and I have only seen references to the HTA, but have never seen any details as to the actual numbers. I do know that all of their forks have a 43mm offset. Based on how the bike handles, I would say that the HTA is certainly on the slack side. It took me a little while to get used to how it felt since I was used to riding bikes with a 73º or steeper HTA. However, now if feels fine to me.

[Dave]

I have a geometry chart that claims the HTA on a 58cm to be 72.2 degrees. The front-center is listed as 598mm.

[Keith A]

Dave -- Would you mind looking up these geometry values for a 52s which is approximately equal to a 56 traditional. Thanks. BTW, where did you get this info?

[Dave]

The 56cm HTA is listed as 71.8 degrees. I have a geometry chart from Trialtir, dated 2003.

[bluesea]

Can't remember where I got this.


http://img824.imageshack.us/img824/229/c40geometry.jpg