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The Chop-e electric bike, built by a trio of Estonians, is an elongated, low-slung machine. It's got a top speed of 35km/h (about 22mph) and a range of 75km (about 47 miles).
The Chop-e electric bike houses its battery inside the massive rear wheel. The prototype weighs 60kg (132 pound) due to its steel frame, but the company plans to move to lighter aluminum.
A twist throttle on the right-hand handlebar grip controls speed, but the green button sets cruise control. The red button is a horn.
A Web Summit attendee tries out the Chop-e.
Chop-e co-founder Dmitri Kovaltšuk describes the vehicle to Web Summit attendees in Dublin, Ireland.
The Chop-e houses its electric motor in the front wheel.
The Chop-e has a wide but squat rear wheel and no rear suspension.