97 smaller bearings
98-99 standard/tourer
99-03 interstate and 2000-03 standard/tourer
note: 2000 and newer wheels are high polished and clear coated
There was only a difference in bearing sizes for FRONT wheels.
Besides the finish there two rotors. The early rotor has a recessed center portion therefore the hub of the wheel extends to the left a little more than the later models. If you keep the correct rotor on the correct wheel....ALL rear wheels work on ALL Valkyries. Its only when you try to intermix rotors you start having problems