@AzzaD
I have spondylolisthesis which causes me daily back pain but I havn't noticed any additional stress from the heavy emtb.
I can see you're also in Surrey so you're welcome to take mine for a spin before committing to buying anything.
@JoeBlow
You are absolutely right. However, there...
I'm still in two minds whether to take the ebike or not.
Total route (officially) is 61 miles and doesn't go via Ditchling Beacon - that's the road route. Off-road is via Beeding Hill (if you're a local) or Truleigh Hill.
Shorter route this year as the starting point is in Walton in Surrey...