Not sure about Mott Street, but I've ridden an unladen Bullitt up Swains Lane. 32 chainring, 1x11 MTB groupset. Still had a gear spare. You can gear them so low that it becomes as much a question of balance as it is forward progress.
They do the urban hill climb there, and there's a cargo bike category.
I commute on my Bullitt, about 6km each way. It's fine.
Not sure about Mott Street, but I've ridden an unladen Bullitt up Swains Lane. 32 chainring, 1x11 MTB groupset. Still had a gear spare. You can gear them so low that it becomes as much a question of balance as it is forward progress.
They do the urban hill climb there, and there's a cargo bike category.
I commute on my Bullitt, about 6km each way. It's fine.