The spacers press into the bearings on the NSR rear wheels. Only the fronts are "floating".
Here's an example, showing an MC21SP cush drive, with a spacer still in place.
_________________
Andy.
NSR-WORLD.COM
Please keep all responses to Forum posts on the Forum so that others may benefit.
Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.
Check us out on Facebook! Please "like" our page!