This is "Rise100", "Business Class Pro Bike" unfolded, --- with an average weight rider, good terrain, favorable wind and correctly inflated tyres "Rise100" is capable of 100 miles in ---350w PAS 15mph format---, with the large 48v 21Ah battery being fully 4 hour charged.

Further, when converted to ---450w moped 25mph format---, using the bikes EEC chassis number to register in with "Single Vehicle Approval", "Rise100" will take the rider 50-80 miles.
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/973873/motorcycle-single-vehicle-approval-application-form.pdf  .

Large ruts in road tarmac made by lorries at traffic lights can de-stabilize any mid sized bike, to prevent this ---lean forward to start---, gently twist throttle feeding in power , always sit-up straight as soon as possible and pull on the handlebars, ---lean back to stop--- using/compressing the center of bike
"Flex Rig". 

Emergency braking cuts the power but pedestrians and high sided vehicles don't mix, -- always lean a few degrees back while passing any judged hazard, -- in preparation for an emergency stop, just in case.
Taking these precautions on flat to incline roads will allow instant braking via "Flex Rig", quicker than most bikes.
As with all bikes this size, when travelling downhill caution must be taken, slow down, be aware.