A
Al Frost
Guest
I've just built up a set of new mtb wheels with Chris King Hubs. When it came time to fix a 9-spd XT
cluster (11T cog on the bottom) I found that the Shimano lock ring does not have enough threads to
engage the drive shell. According to the instruction sheet King the user "MAY" need their lock ring
on some 9-spd cassettes. I called CK and was told that Shimano clusters have very wide tolerances
that result in this thread engagement problem. I suspect that is correct since I tried to fit an old
8-spd XT stack to the hub and the clearance between the cluster hub and the drive shell was so tight
I doubt that could get it off once installed. The kicker in all this is there is a 2 to 3 week wait
for CK lock rings because there has apparently been a run on them. A possible solution is to machine
off some material from the back of the cluster hub to allow the cluster to seat closer to the drive
side spokes. I have not verified the clearance between the largest cog and the spokes but it seems
like a lot of work to get this combo to work. Another solution is to find another lock ring long
enough to engage the drive shell. Any possible candidates out there?
ALF
cluster (11T cog on the bottom) I found that the Shimano lock ring does not have enough threads to
engage the drive shell. According to the instruction sheet King the user "MAY" need their lock ring
on some 9-spd cassettes. I called CK and was told that Shimano clusters have very wide tolerances
that result in this thread engagement problem. I suspect that is correct since I tried to fit an old
8-spd XT stack to the hub and the clearance between the cluster hub and the drive shell was so tight
I doubt that could get it off once installed. The kicker in all this is there is a 2 to 3 week wait
for CK lock rings because there has apparently been a run on them. A possible solution is to machine
off some material from the back of the cluster hub to allow the cluster to seat closer to the drive
side spokes. I have not verified the clearance between the largest cog and the spokes but it seems
like a lot of work to get this combo to work. Another solution is to find another lock ring long
enough to engage the drive shell. Any possible candidates out there?
ALF