This is a good mod for the DR350 also. 1994 and later DR350 wheels will bolt right up, the brake caliper is a bit different on the 94-97 models but it may fit and the brake rotor diameter is the same size.
I have a 99 DR350 and a 2001 DRZ250 and have verified it on mine. I have a 1991 spare wheel, I needed to change the bearings and center spacer in it to fit my 99 or the DRZ250.
Buncha dirt bikes with license plates.