I also went from a triple Sp Dolce to a Ruby with a compact. I pretty much keep the same cadence as I did with the Dolce which is between 78-82 cadence. Riding regular flat rodes with the Ruby I in the 15th gear on average. To be honest I do not know what gear I kept on the Dolce as my Ruby has a little gage thingy on the cable.

I hope this makes some kind of sense to you.

~ JoAnn