Sacrilege - gearing up a fixed

yeah, its one of the maxys where you cant change the ring. i always thought they were a bit cheap, but having seen one in the flesh, i quite like it. it would be alot easier to change it, but my lack of funds doesnt allow it to be easy.

my rear hub, is a modern shimano 8speed. i dont know about the spacing, or how this affects the cassette i can use.

I have a maxy road double which you're welcome to have