Clutch hub spacer for R1150XX, worn input shaft splines

[cele0001]

I am in the final stages of developing clutch hub spacer kit to ensure full engagement of the hub/spline on 6 speed BMW (1100S, 1150XX, and some chrome heads).
Here are some pictures.
Spacer with rivets

What it looks like.

I am doing 10 pieces run and currently working on tooling to set the rivets, easily and consistently. Plan is to offer the product for sale when it is ready. It is for BMW factory clutch.
It would be a kit with spacer, rivets and tooling. The idea is to use grinder or dremmel tool to cut the head and knock the old rivets out and use hydraulic press to set the new ones in.
I am also thinking about offering only the spacer without the rivets for the people that want to bolt it instead of riveting (or have somebody else rivet it for them, at a reduced cost). I haven't worked the price yet but the spacer only would be under $90. I have tested it in my bike like this. I rode it for 500 miles and checked, everything was OK. I am currently doing the same test with rivets.

Once the parts are done in about a week or so those that want just the spacer will be able to buy one. Rivet option will come later and will include tools needed to complete the task. I am hoping about 3 weeks behind the parts. Price will have to be higher but I am doing my best to design correct tools at the right price.
I would appreciate those that are interested to check in on this board so I can start the count. Please keep in mind that since I don't require prepayment parts will go to whoever raises their hand first.
I will keep a count on this board for people that expressed interest.
Thank you

 

[hutchy]

Hello Cele

I have seen Chris Harris sending clutches away for a mod on bikes that he services over in the States

He never showed the mod, he just explained the mod, nor did he mention the fitter/supplier doing the work

Have you had much take up in the States?


H

 

[DrAlf]

What does this do and why would I need it? Looks interested but further explanation would be appreciated.

 

[DrFarkoff]

Simples It just Spreads the load from worn splines along a much longer length of the input shaft

Reducing damage and wear and increasing energy transmission without rotational "slap" loosing it

What does this do and why would I need it? Looks interested but further explanation would be appreciated.

 

[cele0001]

Hello Cele

I have seen Chris Harris sending clutches away for a mod on bikes that he services over in the States

He never showed the mod, he just explained the mod, nor did he mention the fitter/supplier doing the work

Have you had much take up in the States?


H

It is the same idea. Spacer ensures complete engagement. I want to allow people to do it themselves without paying for modified clutch.

 

[cele0001]

There is decent amount of interest on advrider. Drfarkoff I couldn't have come up with the better explanation myself. I don't really want to get into long drown out discussion re worn splines. The fact is if you get it you get it, if not there is plenty to read all over the place regarding this's issue.

 

[cele0001]

Here is a very good picture of worn clutch hub with clearly defined area that the shaft does not engage. This is what the spacer addresses.

 

[cele0001]

SPACERS ARE HERE !!!!!