Good read and a great option for maybe an EMTB ride out session perhaps @Rob Hancill?
Very obvious to see these guys were not using the right tyre combo on this ride and got a bit caught out by having to expel more energy pushing the ebikes up some of the hills and also had energy sapped from them trying to muscle a heavier bike around while riding the ups and downs on a reasonably long technical ride session.
For me, it would have been Super Gravity or DH carcasses tubeless tyres all the way on this terrain. Others may prefer to opt for lighter tyre carcasses with inserts which again ‘may’ work as well.
Not sure if any one else has experienced this before but I find if I ride very technical uphill and downhill sections over a long period on the same ride session on my ebike my legs are fine but my upper body feels like I have been to the gym and completed a very long heavy weights session