Hey Kingfish, its a standard triple T fork from a chinese pitbike, the neck tube was same as the bikes been i think 1", i was able to reuse the bearings that came with the forks. I had to shorten the neck on the bike by like 10mm from 140mm to 130 to get it to fit ok. Its pretty heavy tho, i would say the forks alone are about 6kg or more with the wheel i used been over 10kg

With brakes thats like 20kg just in the front end with the rest of the bike including motor weighing less then that
If i do it again for the look i think i ll just modify a push bike hub to fit rather then use motorbike stuff, its a 21" motorbike wheel. Its actually on ebay atm so i ll find out soon if people like the look of it, 7days left on the auction with 8 watchers and a large number of emails already

You can get a fork setup for like $80 and the brakes would be under $100 for a twin piston 240mm disc too. So alot cheaper then normal bike stuff and a million times stronger, but alot heavier.
Something like
http://www.pccmotor.com/inverted-forks- ... 05050.html would be great, just relace the hub with a bicycle rim and your good to go.