I see that the Post Office is trialling postal ebikes - an encouraging sign for the future. I hope it takes off.
But those central low hanging derailleur tension arms look very vulnerable to lumps and bumps. Also if the rider (driver?) comes to an unexpected halt (it quite often can happen in town riding) and they have not changed down the gears, which requires the pedals to be in motion with a derailleur, can you imagine trying to move off in a high gear with that weight behind you - even with electrical assistance.
It would appear far better to install a Shimano Nexus type hub gear in the nearside driven wheel. More compact, much less vulnerable and any gear can be selected whilst stationary.
I want one for winter cycling, but without that large back container (although I suppose it could be converted into a cosy coffee break retreat!
But those central low hanging derailleur tension arms look very vulnerable to lumps and bumps. Also if the rider (driver?) comes to an unexpected halt (it quite often can happen in town riding) and they have not changed down the gears, which requires the pedals to be in motion with a derailleur, can you imagine trying to move off in a high gear with that weight behind you - even with electrical assistance.
It would appear far better to install a Shimano Nexus type hub gear in the nearside driven wheel. More compact, much less vulnerable and any gear can be selected whilst stationary.
I want one for winter cycling, but without that large back container (although I suppose it could be converted into a cosy coffee break retreat!