| But the wheel is not modified in any way by adding weights, it is just balanced and yes the same can apply to a complete crankshaft assembly, in that you can mix and match rods pistons etc to balance a crank without having to modify the crankshaft.
But few people resort modifying by drilling or grinding their wheels to acheive balance.
So back to the rule, it says No modification of the Crankshaft, It does not say no balancing of the crankshaft asembly by selecting matchingcomponents
As for 916 wheels as far as I know a 916 front wheel is no different from a 620 front wheel and as the rule says
1.6.5 Wheels
Wheels including diameter and rim width must remain as originally produced by Ducati since 1992 for the 600/620 bikes.
Front wheel 17” X 3.5”, Rear Wheel 17” X 4.5”
There is no issue with using a 620 front or rear wheel in a 583 and if the 748/916 front wheel is the same part as a 620 it can also be used.
Did they fit any 620s with 5 spokes as found in the 996, if not then I doubt these would be allowed
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