I have a 2020 Raven with Rohloff which I have received an estimate from Thorn to have a Pendix installed. SJS do not have a demo bike to try but I'm confident the system must be pretty good otherwise they would not be selling and installing them. My wife has a Raleigh Motus pedelec bike and it's great to ride. If you want more exercise you just turn the assistance down. To go up the 20% gradient out of our valley you turn it up. Does anyone have experiences they can share of the Pendix conversion on any bike, but particularly on a Raven?