Originally Posted by
cid499
I've got a similar unit with no fixed cups - a lockring on each side. It's not Tange, but Suntour Superbe. The construction is almost identical, except for the lettering and the spline on the cups.
Printed on the unit are the words "adjustable chainline" - I believe you can adjust the position of the spindle a few mm left or right with the cups.
brilliant. makes perfect sense!