Biker's right... you'll get a lot of sidewall flex from a tyre that fat in a narrow rim. Add that to the added flex in your forks from the loss of the brace and you're asking for problems. Get yourself some spoked wheels from an america, do the thunderbird hub trick so you still have your dual disks, and put a wider rim on the front. Extend the fork brace so it'll fit over your tyre too, and you'll have a nice safe ride with fat looks.
If you're gonna do it, do it right.
