I rubbed and I rubbed... I've never rubbed anything so hard before.. And many hours later.. I was done. (hey, it's not that kind of web site,
, get out of the gutter)
Anyway, the rims look like brand new now. No ugly wear marks.
I would recommend 220 grit sand paper. And go with the direction of the rim, don't go perpendicular (sp?). A sanding block didn't help. I kept a wet cloth around to clean up the Al dust.
This method is likely good for smoothing rough weld joints also.
I doubt there is any weight savings here. But style is important when your bike costs more then your car.
Sorry, my digital camera is not working. It looks as you would expect. like machined side walls.