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My new freehub body (right) has much shallower threads than my old one (left). The threads are so shallow that I cannot properly install the cassette lockring.
They are both for Campagnolo 9/10/11 speed. I am using the standard lockring that came with my Campagnolo 11 speed cassette.
How can I fix this?
This is a very strange one. According to Ritchey, a superfluous dust guard was installed in error on a batch of these freehub bodies. The good news is that the dust guard is only held in with friction, so it can be removed with a pair of pliers. Following this, the freehub body works great!
Assembly instructions for the hub can be found on YouTube.
For Google:
Ritchey product code for the freehub body is SKU 55350007013 and for the "WCS Zeta Disc Wheels" it's SKU 51355008002.
The right hand one appears to have been assembled incorrectly. You may be able to fix this by pushing the bearing home with a suitable press but you'd be better off referring the problem back to the supplier of the part who will likely exchange it.
Which of the two routes you take depends very much on where the part came from and how you want to spend your time. It is very frustrating when new parts arrive in this condition!
