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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: Finnigan on July 08, 2014, 06:53:04 PM

Title: Questions About Paralevers
Post by: Finnigan on July 08, 2014, 06:53:04 PM

Hey Everyone,

I'm converting my k100 to a paralever to fit bigger wheel/tire.  I've seen k1/k1100/k100rs4v paralever drives put on but the k1200 and r1100 are cheap for me to get.  I plan on getting the swingarm and paralever with matching drive shafts for whichever configuration I get.

My Question is:  Is the gearbox to driveshaft connection the same for all BMW driveshafts?  i.e. will a 1200 driveshaft fit on a k100 gearbox?

Title: Re: Questions About Paralevers
Post by: Scott_ on July 08, 2014, 10:20:42 PM

I've not seen either one, but I would think that it would come down to the spline count.
I have read that there are different spline count's, but I can't say what year/model that the changes took place.
You may just want to have a pictures taken so you can count before you buy?

Title: Re: Questions About Paralevers
Post by: wmax351 on July 09, 2014, 02:00:05 PM

All of the K's should be the same at least. I'm not as sure about the R bikes. Scott has a good point, a picture is a good double check.


What is the ratio of your rear end on your k100? I might want to buy that off of you, I'd like something higher than my K's 3.2:1. Ideally the 2.9:1

Title: Re: Questions About Paralevers
Post by: Finnigan on July 09, 2014, 06:09:48 PM

I'd have to see whats stamped on the side but it should be 2.81

Title: Re: Questions About Paralevers
Post by: wmax351 on July 09, 2014, 06:59:44 PM

Quote from: Finnigan on July 09, 2014, 06:09:48 PM

I'd have to see whats stamped on the side but it should be 2.81

Awesome. I need to check with Bruno's machine shop about using a rebuilt shaft with a stock FD.

Title: Re: Questions About Paralevers
Post by: Finnigan on July 10, 2014, 12:02:35 PM

I'll sell you the drive shaft too if you like

Title: Re: Questions About Paralevers
Post by: K75RT Keith on July 10, 2014, 01:55:03 PM

Look up the drive shaft number for a late model k1100rs and run it through REALOEM to see what else it fits..

K1200 FD's have a high failure history It is my understanding that it is because they changed from a 16 ball bearing to a 12 ball bearing in the FD.

Title: Re: Questions About Paralevers
Post by: Finnigan on July 10, 2014, 03:49:03 PM

Thats good to know Keith, thanks

It looks like its not going to fit unless I put in a 1200 gearbox anyway.  Better off with the 1100