Due to back and knees being knackered I’m thinking of trading in my Pivot mach 6 carbon and getting a Haibike , I’ve had no experience of these bikes, i know they are a bit heavier but was after a similar sort of ride. Any suggestions or advice.

Why a haibike? Or would any ebike (I assume, given your post) do? If so then the Spesh turbo levo’s are great.

Mate has both Haibike(fs & ht)and a Mondraker, rides the Mondy more…. He has had both hips replaced. Another who had a heart attack, stents to keep him alive also has a Mondy.