Having pulled apart my ritchey rear hub which had seized up, it appears the innermost surface of the lockring holding the disc rotor is interfering with the axle cap. A solution would be to file down the lockring but does someone make a shallow lockring?
Isn't it more likely you've not rebuilt the hub correctly and so the axle cap isn't in the right place? I actually rebuilt a DT Swiss hub yesterday and had to make sure the axle cap was installed correctly. If the bearing wasn't installed "deeply" enough that would have the same result.
That is a very fine point scotroutes. I will remember to tap the new bearings in fully on the rebuild.
I had to get one a few years ago although I think it was for fork clearance rather than the inside surface. Hunt sell slim ones here, probably a generic part you can get from ebay: https://www.huntbikewheels.com/products/shimano-sm-hb20-hmb618-centre-lock-ring-for-disc-rotors-to-fit-around-15-20mm-front-bolt-through-axles
I had clearance issues, on the fork, when I built my road bike.
In the end, I used the locking from this kit...
A standard cassette lockring was thin enough, but there wasn't enough clearance between locking and axle cap, to get the lockring tool in
I’m pretty sure the shimano ones that require a spanner (same as used for external bottom brackets) around the outside will do this - you can get thin and thick too
Scotroutes - you were spot on with your analysis. The nds bearing was not seated properly. That caused the outer axle cap to be further outboard than designed resulting in the axle cap flange interfering with the rotor lockring. There was another clue - the cassette wasn’t seating properly with a couple of mm of the pawls showing. I’d assumed it was poor design work by ritchey (apologies mr ritchey) but it was the drive side bearing also not seated properly.
Anyhow i used it as an excuse to buy new bearings and the wiggle bearing press kit to play with and the timberwolf has been transformed back into a great bike.
Cool. Good to know you are sorted. I found a hex socket that was the perfect diameter for driving in the DT Swiss bearings. That and a soft mallet 😉 (I also chuck the bearings in the freezer overnight)
