Stock Cylinders

[pekingduck]

So, about how many miles does one get before the rings have worn through the aluminum cylinder bores and a new set is required?
thanks,
tdbru

This is the same process Honda uses on their cars.  Rings are the same high quality. Machining is so precise, pistons and rings perfectly fit the bores. Cylinder walls will wear very little.

So maybe 125-150+k miles before you have to even think about it.  And likely a new set of original rings will take it to 200k.

Remember having to keep engine speeds low on new bike break-in? New materials/machining techniques have made that unnecessary.