Thanks Taffy!
Here's some pics to clarify....
1. Inner clutch hub from my engine, part nr. 59032002100R:
Engine side, you can see the holes (spring retainer bolt holes drilled through):
2. New, never used inner clutch hub, part nr. 59032002500R:
Engine side, no holes
Outside
So, you're saying that the hub with part nr. ending -500 is the newest and the best part available?
And 17L Clarke tank.....
M.
Here's some pics to clarify....
1. Inner clutch hub from my engine, part nr. 59032002100R:


Engine side, you can see the holes (spring retainer bolt holes drilled through):


2. New, never used inner clutch hub, part nr. 59032002500R:

Engine side, no holes

Outside

So, you're saying that the hub with part nr. ending -500 is the newest and the best part available?
And 17L Clarke tank.....

M.