kgt wrote: ↑
Sat Aug 10, 2019 7:01 am
Again, my impression is that some details of the bike were not designed at US by Cannonadale but were outsourced elsewhere...
the puzzling geometry
,.,.,., ... are not a proof of great design IMO and certainly far from other modern frames
The geometry is exactly the reason i say no to a good deal on S-works Tarmac frameset and will buy new Supersix instead. Mind you, Tarmac also design with improved geometry for smaller sizes compare to traditional geometry. It's just that Supersix take an even bigger step further than Tarmac.
I have 4 main criteria in selecting bike geometry for my next bike.
1.) bb drop of at least 72mm, check: smaller sizes Supersix and Tarmac both have 74mm bb drop.
2.) Trail value of 58mm preferred but no more than 63mm is acceptable. I want a bike that handle well in twitchy corner, i don't want to accept compromised trail value that most small bikes has.
3.) Stack of no more than 525mm (-17degree and slamthatstem headset cap in that config).
4.) If possible, long front center to minimize or eliminate toe overlap. Although i use 165mm crank, my proper cleats position is a few mm behind ball of the foot, that push my shoes closer to the front wheel.
Considering 2,3,4 the new Supersix size 48 hit home run on all of them.
Supersix Evo size 48: trail=58mm, Stack 519mm (so i can still use regular short headset cap), front center=588mm. All thanks to fork rake=55mm (vs 47mm of small Tarmac which is still better than 43mm traditional) and what you call puzzling geometry.
Tarmac size 49: trail=63mm (on the slack side on my preference), stack=514mm, front center=574mm (still has toe overlap)
Tarmac size 52: trail=58mm, stack=527mm (a bit too tall already), front center=577mm
Both sizes of Tarmac has a bit of compromise (for me) while new Supersix does not. Outsourced design would take traditional approach and make it the same as everyone else. It is far easier than taking this new approach and having to defend it to people that hate every bit of changes, even for better.