The venerable sturmey archer 3 speed works fine , for braking in bad weather
getting their Drum Brake hubs does the trick.

{I moved to the NW Coast, been 2 winters with out Ice , 3 years ago 1 week was Icy. )


A Non shifting Chain Tensioner on the back, and you can use a double chainring

Pick One for towing the trailer and a different size for without..