clutch roller?

[rough rider]

can anyone tell me the outer diameter of a 8ca-17624-30-00 roller???. Im getting confused with the yamaha part numbers, a book that i have says its a 16mm out diameter , but when i punch that number into a yamaha parts finder, it comes up as a 8cr-17624-00-00 roller 14.5 what is it?? I just want to order some 14.5 rollers for my xtx

 

[Mtnviper]

According to my handy dandy Yamaha clutching chart, the 8CR-17624-00-00 is a 14.5mm roller.
The part number is the same for the larger rollers with the exception of the 9th and 10th digits.
For example
8CR-17624-10-00 = 15mm
8CR-17624-20-00 = 15.5mm
8CR-17624-30-00 = 16mm
8CR-17624-40-00 = 16.5mm

Bill