The Starks do look nice - it’s good to see more ADR compliant bikes come out. I’ve actually been tossing around the idea of getting a Surron Ultra Bee for a while as I think it’d be good for single track and more technical fire trails (light weight and enough power/range, though would ultimately want a 21/18" wheel setup instead of 19/19"). Range is something that would have to be planned around for fire trail exploration (definitely still more limiting than petrol bikes) but for single track within an area the Ultra Bee would work well for me (I take my bike back and forth in the van already, and generally clock up <50km).

The more powerful e-MTBs also seem a good idea for exploring behind gates, I do keep a bit of an eye out for these on the secondhand market as if I found a cheap good one I’d consider it. It’d have to have both decent power and range though as 250w doesn’t really do that much going up steep hills and I wouldn’t want to be pedalling the added weight back without charge for the motor.