April 8, 200719 yr Hi there, Do you really mean a 1990 rear wheel? I would say no. Usually the rear wheel from the same year model from either bike would most likely fit. While the distance between centres is the same, the rear brake caliper mount and disc diameter dictates if the wheel would fit or not. I have a 1989 Gas Gas, the rear wheel from this bike will definately not match up with any PRO model or even a 1997 onward bike. Bye, Peter.
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