Powerfly Shimano Microspline Cassette Incompatibility - Resolved

[Long Way Home]

Resolved: The spoke guard was too large for the smaller cassette and prevented the cassette from seating correctly on the free hub body.

Hi everyone,

I was going to make a change to my gearing today and also prepare the bike for the oncoming wet weather. The plan was to swap out the Deore 12sp 10-51 (CS-M6100) cassette and fit an SLX 12sp 10-45 (CS-M7100).
I was of the understanding that all micro spline cassettes were cross compatible, but it appears not to be the case, as when I tried to install the SLX cassette, it contacts the wheel and the free hub locks. It looks like the Deore has a deeper dished profile to the spider beam, moving the gear cogs closer to the wheel/spokes. This would imply that the free hub itself, might need to be SLX also.

Could anyone please clarify if this is the case and what configuration is required to be able to correctly fit the SLX cassette?

 

[MBj1703]

Both are Microspline and are exchangeable.
Seems you did something wrong while mounting?

 

[Long Way Home]

No, the cassettes were placed over the free hub splines, the Deore cassette drops onto the free hub base, the SLX cassette stops short and hits the wheel.

 

[Philly G]

Might help if you post some photos....there's something strange going on, as @MBj1703 says, all the microspline cassettes are interchangeable

 

[MOG]

Possible that the angle of your spokes is very slightly DS bias and the smaller inner gear on the SLX cassette is contacting the spokes. The bigger rinbg on the Deore cassete allows it to just miss. Seems odd if so but could easily be fixed by changing spoke tensions and moving the rim a little towards the NDS
.

 

[Long Way Home]

Possible that the angle of your spokes is very slightly DS bias and the smaller inner gear on the SLX cassette is contacting the spokes. The bigger rinbg on the Deore cassete allows it to just miss. Seems odd if so but could easily be fixed by changing spoke tensions and moving the rim a little towards the NDS
.

That's a good call and something I have yet to check.

 

[Snrbrtsn]

I’ve had the case where you need to install a spacer in the back
Im currently using a Crank Brother synthesis rear wheel, had to fit a spacer
From the old cassette, smallest cogs have 1 & 2mm spacer - these are ideal

 

[Long Way Home]

Problem resolved. The spoke guard was the culprit. I'll have to source a smaller one if I want one fitted at all.

 

[MOG]

Spoke guard? You mean the Dork Disk? I thought everyone threw them away before ever riding their bike in public