This is a 9sp cassette. No spacer required if on an 8/9/10 freehub.
How thick is the spacer you've used? (assume slotted on before cassette).
It might be as simple as making sure everything is clean so that the cassette slots on fully.
I would still be looking at either the spacer or a cog fitted the wrong way round.
Thank you.View attachment 727293
Spacer is there just to show spacer is there...if that makes sense
In what way "worse"? Surely with the spacer absent the cassette will e 1mm further on the splines and lockring will engage at least one more full turn than before.The spacer was on it before I took the cassette off, and I have tried to install it without the spacer and it's actually worse believe it or not.
Spacer is incorrectly installed, there is a notch on it which should align with one of the splines and drop the height of it.View attachment 727293
Spacer is there just to show spacer is there...if that makes sense
I've always assumed the purpose of the different width spline on the hub was to ensure cogs could only be fitted one way - presumably for tooth geometry / topology / shifting purposes?The 4th smallest cog has no stamp marks on it that I can see - that might indicate it has been fitted in reverse?
Am I missing something here, because on the hubs I've messed about with, the odd spline has been narrower than the rest.The hub should have one slightly bigger spline than all the others to which the cassette should also align with.
I hope not as this bike is only a month old! Bought brand new.Freehub has moved too close to the outer cog. This results in the 5th cog not locating into the spline for the 9th cog.
Adding the big hammer to this on the 8th cog will result in the 7th cog slotting into the correct place which is why you need a new wheel and hub.
Thank you.
Could you please verify that the lock nut isn't stopped by that seal (or whatever that disc shaped and seemingly broken entity is) right inside of the outer nut on the axle?
E.
The narrow spline is usually an effect of having the wider spline next to it but it doesn't really matter what it is referred to (which is what bikingdad90 has replied) as the cassette/spacer will only go on one way .Am I missing something here, because on the hubs I've messed about with, the odd spline has been narrower than the rest.
Now we have the reason for the engagement problem: the seal is at the wrong place.Yes, that's exactly what is stopping the lock nut from entering the lock wheel correctly. The disc shaped (broken?) thing is part of the axel which appears to be seized on there as I cannot remove the nut next to it and believe me I've tried