I've just put super moto rubber on my 95 FE501.
I am doing it cheaply just so that I can try it out, as the local Kart track has just opened its doors to Super Moto. I have no interest in riding the bike on the street, even though I have license plates, basically because the clutch drags and I need to wear motocross boots to kick it over.
I visited the local bike breakers with the front axle in hand.
I managed to find a 17" front wheel off of a 1988 Kawasaki Eliminator 500 (it looks pretty cool - 3 spoke design). (I think that the front wheel off of a Kawasaki EX500 would also fit, but it is 16" diameter which is small and would limit tire choice and may be a bit too fast turning / unstable.) The wheel bolts on with no problem except that the brake caliper bracket needed grinding to clear the brake rotor. Cost of wheel $50 including rotor, $20 for used Dunlop Sportmax 17 x 120. For the rear I put on a new 18 x 130 Dunlop Elite?on the stock rear wheel, cost $50 plus mounting. I hope to go to the Kart track (Amago) this weekend, hopefully this (cheap) setup works okay.
I have n't used the bike much in the last two or three years ( I've been riding my 2001 KX250 ), it seems like Malcom Smith Motorsports, where I used to buy parts, no longer carry Husaberg parts. Where can I buy parts?