We started upgrading to an 8mm last year.With the 6, the speedo drive be able to rotate around and break the speedo cable.The factory has started using the 8mm as a running change from what ive seen. (not the official word)
here is a picture of the new front forks without the offset. yes RE did it after all these long 60 years
From a manufacturing standpoint it wouldn't make sense to have two different configurations in production at the same time.Parts are least expensive when a lot of them are made without changing the machine setups.
The export bikes are already different. Different tires, different ECU/exhaust with the O2 sensor, different front wheels on the C5 (19" for IDM now), and I think a few other little things.Scott
Why go through the expense of a new rim when some of available tires for the 18 inch rim have the same or very close outside diameter as what one can shoehorn onto a 19 inch rim under the fender?