festa

Hi Just thought id say hi to you all.

I have a 4xv R1 that im turning into a track bike and have bought a set of wheels that i though were off an R1 but have since found that the rear is off a 98-00 R6 (5eb stamped on wheel ). The rear wheel sits in the swinging arm ok and the disc lines up ok as does the rear sprocket. Just wondered if it would be ok to use this rim as its only a 5 1/2 inch wide and the one on the r1 is 6 inch. Has anyone done this before? Your ideas and thoughts on this please Thanks Nathan