Originally Posted by
531Aussie
Great. Thanks very much. However, unfortunately, that chart doesn't seem to have head tube sizes, which is one thing I'm particular about, coz of my dodgy back
I found what I think is a track chart, which says the 56 has a 168mm head tube; what does this mean?
This was a pro race bike. So it's not like a Synapse with a taller head tube. Track frames generally tend to be even a bit lower (not all but some). It's more aggressive. And they tend to run a bit shorter in the top tube.
FWIW...the CAAD5 was a pro race frame. It's not the club rider geometry. That said, you can always fool with stem and bars to make it more upright for your back.
Understand that back in the 2001 era, Cannondale's bikes were all pro race frames. They raced the 4, then went integrated headset, still sold the 4 at a reduced price, then came the 6 and 7, still sold the 5 at a reduced price, then the Six 13, still sold the 7 at a reduced price. It was not until the Synpase that they started making upright geometries with more plush rear stay setups.