Freewheels are easy. They spin on hand tight, then will self tighten as you ride, same as road bike freewheel. By the same token, you'll need a freewheel remover to take them off when that time comes.
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.