I have read few threads about cassette wobble, but they don’t seem to finish with an outcome. I noticed when I fitted my XT cassette and now a Sunrace 11-46 cassette that when I put them on the splines of both my shimano free hub and the other wheel’s American Classic hub, they’re nowhere near snug onto the splines. So when the cassette is on and the locking tightened, you can actually grab the big cog and wobble the cassette around. I’m sure it’ll be fine under pedalling torque, but I reckon it’s going to make a racket otherwise.
As the shimano wheels are not used much at all, I’d be surprised if the splines have worn down. I tried a 1mm spacer at the rear of the cassette, there was no difference. Splines greased too.
Anyone had this and cured it? Maybe a new free hub helped tighten things up? I should add I don’t have a torque wrench to get the 40nm, but I tighten well hand tight u til the point I feel more would strip the threads.
Cheers.