Exciter-II , Gearing... ?

[Lasse]

I want to switch gears in the sled and want to know were can I find aftermarket sprockets that will fit the Exciter-II ??



Yamaha OE part #
89J-17682-60-00 , Upper Sprocket , 16 Teeth.
89J-17682-70-00 , Upper Sprocket , 17 Teeth.
89J-17682-80-00 , Upper Sprocket , 18 Teeth.
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89J-47587-30-00 , Lower Sprocket , 33 Teeth.
89J-47587-50-00 , Lower Sprocket , 35 Teeth.