15-05-12, 10:16 PM
Answered it myself 
The next motorcycle chain size is the 50 Class. Those with a chain number of 520 have an inner width of 6.35 mm. If the chain number is 525, the inner width is 7.95 mm. If the chain number is 530, the inner width is 9.53. The 60 Class has a chain number of 630 with an inner width of 9.53 mm.
The next motorcycle chain size is the 50 Class. Those with a chain number of 520 have an inner width of 6.35 mm. If the chain number is 525, the inner width is 7.95 mm. If the chain number is 530, the inner width is 9.53. The 60 Class has a chain number of 630 with an inner width of 9.53 mm.