> The bike has a known legal weight, oh, suddenly its 3 kilos heavier... Part of the issue is that bikes have a minimum weight, but with modern materials it's

> The bike has a known legal weight, oh, suddenly its 3 kilos heavier... Part of the issue is that bikes have a minimum weight, but with modern materials it's quite easy to go below that minimum. So they can cover the added weight of the motor and batteries by cutting elsewhere.