Looking Good Fabrice, question why use a KTM front wheel. Why not use the YZ450 front wheel spacers and axel etc. What do you intend using the bike for? bush bashing or keeping it on the road. This is a discussion we had with Woody on which front rim width to use for different situations.
I have a 100GS front wheel fitted up to one of my 1100 with the standard telelever even that increases the off road performance by about 50%