> As he explained, that means the rider would either need a 5% larger battery to get the same distance, or experience a 5% shorter range compared to the same bi

> As he explained, that means the rider would either need a 5% larger battery to get the same distance, or experience a 5% shorter range compared to the same bike with chain drive. That's a weird way to specify efficiency of assisted e-bike, because battery->motor efficiency doesn't change, but pedals->motor efficiency drops significantly. I wonder which one they mean.