hi all , just picked up a 180 to replace my Trusted 160 ducato
and the RPM in top gear seems much higher crusing in the 65/70 mph then the 160 by about 300 revs , I would have expected it to be the same or more relaxed , Have they changed the gearing or gearbox , but so far a sweet motor

Was the old one on 16" wheels and the new one on 15"?

Just checked , the same as the 160
215 75 16" !

Phil

As well as wheel sizes, different final drive ratios and gearboxes are used according to model.
If you said exactly which models you are comparing, and I had an up to date spec sheet, I could answer your question.