What one4smoke and GailT posted sounds like best way to start your bike fit.


Birota what model Jamis Renegade and frame material are you looking to buy?

I sent Jamis A email asking about their seat tube lengths on their size 58 and 61.I believe they list
the effective seat tube lengths looking at the top tube slope of the Renegade frame.

With your back and neck issues your going to have to find/trust your LBS fitter.