The norman hyde brace will fit the Thruxton forks just fine. Bella Corse may say its not compatible because it doesn't snug up against the fender as it does on a Bonny.
Norman Hyde's website does indicate the brace fits the Thrux.
I played around with an aftermarket fender, but the airtech fender is for a bonny's 19-inch front wheel...Thruxton is 18, just couldn't find a way to get it to look right and have a secure mount.
Anyways, I wanted the added rigidity of a fork brace and I'm using the stock fender for now. Here's the result:

About 3/8 inch gap between fender and brace.
I'm trying to think up something creative for a replacement fender... :brk:
Glenn
[ This message was edited by: Tabletop on 2007-02-15 17:28 ]