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Author Topic: K100 Rear Wheel Spline. Why?  (Read 3987 times)

Offline CG_3D

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K100 Rear Wheel Spline. Why?
« on: March 21, 2019, 09:15:48 AM »
Hi all - quick question I couldn't seem to find the answer to:

Looking at a rear K100 wheel ('86 RS) it has a splined inner center. However, the hub the wheel bolts to doesn't have any sort of splined shaft for this to mate up with.
Anyone know why the wheel is splined? 



Thanks
CG
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Offline Chaos

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Re: K100 Rear Wheel Spline. Why?
« Reply #1 on: March 21, 2019, 10:03:14 AM »
I don't think those are splines, just leftover molding or machining marks.  Another example.....
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Offline CG_3D

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Re: K100 Rear Wheel Spline. Why?
« Reply #2 on: March 21, 2019, 10:13:18 AM »
Quote from: Chaos on March 21, 2019, 10:03:14 AM
I don't think those are splines, just leftover molding or machining marks.  Another example.....

That crossed my mind too since they dont appear to have any sort of wear ...
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Offline johnny

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Re: K100 Rear Wheel Spline. Why?
« Reply #3 on: March 21, 2019, 10:18:47 AM »
greetings...

that is what accepts the cone on the oe wheel balancer...


* P1000947.JPG (58.12 kB . 640x480 - viewed 429 times)

j o
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Offline Laitch

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Re: K100 Rear Wheel Spline. Why?
« Reply #4 on: March 21, 2019, 10:35:20 AM »
Quote from: johnny on March 21, 2019, 10:18:47 AM
that is what accepts the cone on the oe wheel balancer...
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Offline Chaos

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Re: K100 Rear Wheel Spline. Why?
« Reply #5 on: March 21, 2019, 10:52:57 AM »
K's are supposed to us a balance shaft adapter that bolts to the lug nut holes, the center hole is not necessarily machined accurately in the center
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  • sw ohio
1987 K75S    VIN 0231
Original owner, Original litter
200,000 miles (plus or minus) and 5 paint jobs
sold 6/23
2023 Ural 2WD sidecar (BMW's bastard step child)

Offline Laitch

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Re: K100 Rear Wheel Spline. Why?
« Reply #6 on: March 21, 2019, 11:03:10 AM »
Quote from: Chaos on March 21, 2019, 10:52:57 AM
K's are supposed to us a balance shaft adapter that bolts to the lug nut holes, the center hole is not necessarily machined accurately in the center
Here is a sample of an alternative for rear wheel balancing without the bolt-on feature.
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Offline CG_3D

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Re: K100 Rear Wheel Spline. Why?
« Reply #7 on: March 21, 2019, 11:19:32 AM »
Quote from: johnny on March 21, 2019, 10:18:47 AM
greetings...

that is what accepts the cone on the oe wheel balancer...


* P1000947.JPG (58.12 kB . 640x480 - viewed 429 times)

j o

A-ha! Thanks so much for the info! Good to learn something new.  :2thumbup:
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