Thread hijack...! (well, not really. Directly related off-piste question) :
Most motorcycles, to this day, use chain & sprockets for their final drive.
Due to the exposed environment etc,,, they require fairly frequent replacement as a matter of course.
The chain & sprockets are default always replaced as a complete set.
Engine timing chain replacement is only ever the chain itself (as far as I can recall), the sprockets aren't even measured for wear ????
Linky.;
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