The CBX rollers are listed as 15x16, whereas the GL1100 are listed as 15x13. I assume that 15 is the diameter (in mm) and 16 is the length? Too bad its not the other way around so we could source the GL1100 rollers and machine them down to size.

Anyway, I'd like to verify the exact dimensions so I can look into getting some of these rollers machined from hardened stock. If anyone has an early starter clutch on the bench or in a box, would you please verify dimensions for me? Even better would be to loan me a roller so I can get it tested for surface hardness and alloy.
TIA,