FWIW, my winter bike has been using a drum brake hub-set, now offered with a dynamo too,

that will give you a non rim brake that does not need the frame to have fittings like disc brakes do.

so It works for retrofits.. smooth modulation wont break the stud grip on the ice.


for slush ( you going to guarantee no Icy patches) maybe the ones with tread texture?

NB: I have not tested them where you live.. but my WTB 'allterrainasayrus' is pretty cheap to test-try

they're slower, an effect of separate tread blocks moving, and a modestly priced casing.




....