Depends on the V in the bike frame if it will fit or not, all bikes are different. The link I posted above click on specs and it gives you the dimensions of the motor to measure with. That motor has a 3/4in straight crank shaft and that won't work with a lot of premade trans that Mabs use which uses a 5/8ths straight shaft. Some folks have hooked up a 212cc HF motor to a trannie so I dunno. Hopefully someone who has experience will chime in to help.
It certainly looks promising, and that Sun really was a fun bike to ride.
We ran the tires at ~20PSI and it felt like riding a full suspension bike, well, almost.
My 'wrench turner' Cole fell in love with it, he'd make excuses to take it for a parts run whenever he could and wanted me to price it too high to sell.
I did, but it sold anyway, just not before he took it to play around here.
Note that chain guard did not come with the bike, it was just something I had laying around but it worked ;-}