The Angle of the Front Derailleur
Just chiming in with a point that has been overlooked.
The Sofrider is the only Cruzbike model that has the front D.R.
bolted directly to the boom/TFT.
When the TFT is adjusted to fit the riders inseam, the angle between the
TFT and the chainstay changes.
This affects the way that the derailleur effects shifts, when the angle gets extreme.
This is uncommon, the way the front D.R. is mounted, something that most bike mechanics will never see...
but it is simple to adjust/accommodate for.
Both the Silvio and the Vendetta have their front D.R. bolted to a stub frame
?dedicated to the front D.R.
When the TFT is adjusted to fit the riders inseam, the angle between the stub frame and the chainstay remains constant.
Originally, the 8-speed Sofrider was equipped with one front chain ring.
No front D.R. was required.
Mine is an original Sofrider, which has been retrofitted with a front triple
and a boom mounted D.R.
My Sofrider is now a 24-speed... and it is far more versatile now than it was originally.
It works fine.
-Steve