I have a 81 US special, but the front wheel is off I don't know what. I want to get thinner and slightly larger discs, so I need the specs for the disc.
This is what I THINK is right:
Inside Diameter: 64 mm
Bolt Hole Circumference: 80 mm
Bolt Hole Qty: 6
Bolt Hole Size: 80 mm
Outside diameter...