Originally Posted by Board Track Racer
Yes it will fit, I had to spread my original set slightly to make it work. Keep in mind these forks were designed for a bicycle, depending on how much weight your adding to your bike might make a difference on the operation of the fork. My bike is pretty heavy and the springer really does not operate as it should, I'm looking into adding a different spring set up or a helper spring to the original.
It wouldn't be to hard to switch the srings over to the large single spring used on the Monark Supertwin. Just change the top spring mount to one from the Supertwin and add the single post front fork section or weld a single post to the existing front fork. The parts show up once in a while on e-bay.