As the title of this thread says, I'd like information on spools.
I believe that for some bikes they are already pre-drilled so you can just screw the spools in. However, if your bike does not come with pre-drilled holes for spools do you have to get the spools welded(?) onto the swingarm? Do spools come in different sizes?
Also, if one's bike doesn't come with the pre-drilled holes, approximately how much does it cost to get spools installed? (I'm assuming a shop like Imperial Motorcycles or Derek King Racing can do the installation.)