BMW K bikes (Bricks)

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1Back to top Go down    Rear wheel adaptor on Mon Jan 01, 2018 4:00 am

Saxon7

Saxon7
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Meine Herren,
I'm looking for an adaptor so I can fit my car rim to the rear of the BM. They do make an enormous difference to roadholding and tyre life etc. Does anyone happen to know where I could either find one to buy, or find someone who might be able to make me one? Any advice gratefully received.
Sean.

    

2Back to top Go down    Re: Rear wheel adaptor on Mon Jan 01, 2018 7:10 am

jbt

jbt
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I've sometimes seen some on eBay.de
But you also can consider mounting a wide BMW motorcycle wheel (5.5x17, or a R1200C wheel 4"x15 ) that will accept car tyres.
Or do it yourself, it's not a very technical part to realise: a cylinder with 4 holes reproducing the pattern of the rear drive, 4 other between reproducing the wheel pattern.
On my K1, a 6" rim does not fit because of the left tray that bumps into the tyre, but on normal K, you should be able to use this dimension.

    

3Back to top Go down    Re: Rear wheel adaptor on Mon Jan 01, 2018 7:26 am

RicK G

RicK G
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JBT have a read of this https://www.dropbox.com/s/d52wky2uyymllr2/Comparison%20MC%20tyres%20Car%20tyres.pdf?dl=0
It is why Sean doesn't want to use a car tyre on a motorcycle rim.


__________________________________________________
"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats." from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

4Back to top Go down    Re: Rear wheel adaptor on Mon Jan 01, 2018 7:27 am

charlie99

charlie99
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have sent a message to slow phil seanii ...hope he also has some ideas or a contact


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
    

5Back to top Go down    Re: Rear wheel adaptor on Mon Jan 01, 2018 7:29 am

RicK G

RicK G
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Check this mob out Sean they have a very good reputation, but along with that goes a price. https://www.drwheels.com.au/


__________________________________________________
"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats." from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

6Back to top Go down    Re: Rear wheel adaptor on Mon Jan 01, 2018 6:47 pm

Saxon7

Saxon7
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Thanks Charlie, JBT and Rick.
Rick, I'll get in touch with those guys after the break and see what they can do. Charlie, I'll be interested to see what happens with Slow Phil, too.

Yes, I'd prefer to put a car tyre on a car rim. I have a car tyre on the stock rim of my Rocket III but that's a different kettle of fish, the way the rim is constructed and the size of it. I actually use a narrower profile tyre ( 225)on it than the standard one ( 240). A lot of Rocket III owners run car tyres on their solo bikes, which I find terrifying. lol. It's a quest for a few miles wear out of them... ( 30,000 vs 3,000 km). I ride regularly with a mate who has one and following him is an exercise in fear I reckon but he doesn't have an issue with it. affraid Riding behind, I can see the tyre look like it wants to roll off the rim, which is a bit disconcerting! Over time though, I have begun to realise his riding style is a bit weird as hell different as well. Flat out up the straights then get off and catch a taxi round corners. He still does fast point to point times however, because of the sheer grunt of the Triumph. I'm too lazy to ride that way.

    

7Back to top Go down    Re: Rear wheel adaptor on Mon Jan 01, 2018 8:27 pm

Dai

Dai
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It's also possible to machine out the centre of a Smart car wheel to take the original hub of the K wheel. It's a popular mod here for sidecar tugs - the guy I went to India with did it to his K1100 and made it look easy.


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

8Back to top Go down    Re: Rear wheel adaptor on Tue Jan 02, 2018 1:34 am

Saxon7

Saxon7
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Forgot to mention this earlier...
I don't have the tools/facilities or skill set to machine my own stuff here. Sad

    

9Back to top Go down    Re: Rear wheel adaptor on Tue Jan 02, 2018 1:57 am

charlie99

charlie99
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no luck from slow phil ...he sold it on ...


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
    

10Back to top Go down    Re: Rear wheel adaptor on Tue Jan 02, 2018 2:05 am

Saxon7

Saxon7
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Thanks anyway, Charlie. Was good of you to ask. like

    

11Back to top Go down    Re: Rear wheel adaptor on Tue Jan 02, 2018 6:38 am

Dai

Dai
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I have an idea... seriously. Can you get Smart car wheels in Oz? I just talked to my mate and he says that all you need to bolt the Smart car wheel to the existing K100 (K1100 in my previous post was a fat-finger) hub is an adaptor plate - there's no machining of the existing parts involved. He thinks he still has the drawings and yes, if so, he'd be amenable to machining another adaptor. He's going to check for the drawings when he gets home. It can't be FOC because he's self-employed and the machining will eat into his work time. Also, I have no idea what the shipping to Oz would be.

The alternative is that I ask him nicely for the drawings and send you a copy to get the plate made there.

Any help?


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

12Back to top Go down    Re: Rear wheel adaptor on Tue Jan 02, 2018 5:12 pm

Saxon7

Saxon7
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I have a 15" VW rim which takes a 165 tyre that Ed sold me with the sidecar. I know that this works well with the K100 so I think I'll try and stick with that for now. Thanks for your thoughts on the matter though, Dai. Smile

    

13Back to top Go down    Re: Rear wheel adaptor on Tue Jan 02, 2018 7:18 pm

Dai

Dai
Life time member
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Very Happy


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

14Back to top Go down    Re: Rear wheel adaptor on Mon Feb 19, 2018 10:22 pm

Saxon7

Saxon7
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Does someone out there have a rear wheel adaptor that they can take some photos of for me?
All help greatly appreciated.
Sean.

    

15Back to top Go down    Re: Rear wheel adaptor on Mon Feb 19, 2018 11:20 pm

RicK G

RicK G
VIP
VIP
Is the VW wheel a 4 or 5 stud wheel


__________________________________________________
"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats." from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

16Back to top Go down    Re: Rear wheel adaptor on Tue Feb 20, 2018 1:17 am

Packo

Packo
Silver member
Silver member
Couple of teasers for you
I have to mount it on a bike to split the adapter and wheel but I wont have time until next week when I get back from Phillip Island
If you haven't had any luck by then quite happy to take more detailed photos then



__________________________________________________
______________

83 K100 HRD outfit
77 R100RS
2008 K1200S
1983 K100
    

17Back to top Go down    Re: Rear wheel adaptor on Tue Feb 20, 2018 2:49 am

MartinW

MartinW
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Maybe my eyes are out of wack. But in the first picture the adaptor does not appear to be centred.
Regards Martin.

    

18Back to top Go down    Re: Rear wheel adaptor on Tue Feb 20, 2018 3:43 am

RicK G

RicK G
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@MartinW wrote:Maybe my eyes are out of wack. But in the first picture the adaptor does not appear to be centred.
Regards Martin.
Just the photo is not taken from dead centre


__________________________________________________
"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats." from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

19Back to top Go down    Re: Rear wheel adaptor on Tue Feb 20, 2018 4:31 am

Saxon7

Saxon7
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Life time member
Rick it's a 4 stud rim.
Packo, I'd be pleased if you could take some photos when you get the chance. There aren't a lot of sidecar owners on here these days.
Cheers,
Sean.

    

20Back to top Go down    Re: Rear wheel adaptor on Tue Feb 20, 2018 8:57 am

RicK G

RicK G
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VIP
I shall consult my CAD program and see if it comes up with a good design.


__________________________________________________
"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats." from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

21Back to top Go down    Re: Rear wheel adaptor on Tue Feb 20, 2018 5:23 pm

Saxon7

Saxon7
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That'd be great! Thanks Rick.

    

22Back to top Go down    Re: Rear wheel adaptor on Tue Feb 20, 2018 8:06 pm

Crazy Frog

Crazy Frog
admin
admin
Years ago, I sent a sub-frame and a car wheel adapter in Aussieland. The problem is that I don't remember to which member I sent it. It may have been to Alby but not sure about it.


__________________________________________________
1986 k75, 1985 K100rt, 1985 K100rt/EML sidecar.
    

23Back to top Go down    Re: Rear wheel adaptor on Tue Feb 20, 2018 8:36 pm

Saxon7

Saxon7
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CF,
I believe Alby has been unwell and is also busy with his married life with Nicki. Perhaps one day he will return to the forum more regularly and put some more miles on his K outfit if he still has it? Charlie would know more. Smile

    

24Back to top Go down    Re: Rear wheel adaptor on Wed Feb 21, 2018 3:59 am

Waz

Waz
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Life time member
I had the hub adaptor for a while, I got it from Col. Alby did have some drawing on here somewhere


__________________________________________________
1987 K100 RS
1997 R1100R
1996 R1100GS
    

25Back to top Go down    Re: Rear wheel adaptor on Wed Feb 21, 2018 4:27 am

Saxon7

Saxon7
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Waz, do you know where it ended up?

    

26Back to top Go down    Re: Rear wheel adaptor on Wed Feb 21, 2018 4:38 am

Waz

Waz
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Melbourne still on bike I think. I will look for his number


__________________________________________________
1987 K100 RS
1997 R1100R
1996 R1100GS
    

27Back to top Go down    Re: Rear wheel adaptor on Wed Feb 21, 2018 4:53 am

Saxon7

Saxon7
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Oh well. Sad

    

28Back to top Go down    Re: Rear wheel adaptor on Fri Feb 23, 2018 5:41 pm

halflive

halflive
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Does this help?





It is an adapter to fit a Smart wheel on a K75. Four holes on the bike, three holes in the Smart wheel.

http://halflive.hostei.com
    

29Back to top Go down    Re: Rear wheel adaptor on Fri Feb 23, 2018 5:47 pm

AL-58

AL-58
Life time member
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Smart cars arent common in OZ. But you could probably find a wheel eventually. VWs are easy and steel is good anyway.

Al


__________________________________________________
'87 K100RS/HRD sidecar (1100 motor)sc25
'92 K100RS-16v (Paint it Black)

'87 K100RT with Paralever backend

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

    

30Back to top Go down    Re: Rear wheel adaptor on Fri Feb 23, 2018 8:58 pm

Saxon7

Saxon7
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Life time member
Halflive,
Thanks for taking the trouble to post those pics. Interesting Smile
As I already have the VW rim, I'll be working with that. It's one I have experience with in the past and I know it works well.
In the meantime I'm plugging away... getting the sidecar slowly ready and tidying up the biek before I try starting it.
Should be ready by Christmas. santa
Which Xmas though,... I am unsure.

    

31Back to top Go down    Re: Rear wheel adaptor on Tue Feb 27, 2018 9:40 pm

Packo

Packo
Silver member
Silver member






__________________________________________________
______________

83 K100 HRD outfit
77 R100RS
2008 K1200S
1983 K100
    

32Back to top Go down    Re: Rear wheel adaptor on Tue Feb 27, 2018 10:17 pm

Saxon7

Saxon7
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Excellent pics, thanks PAcko. Smile

    

33Back to top Go down    Re: Rear wheel adaptor on Wed Feb 28, 2018 3:56 am

Saxon7

Saxon7
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Packo I Forgot to ask:
Did you make this up yourself, or did you have it made? Any estimate in regards to cost?

    

34Back to top Go down    Re: Rear wheel adaptor on Thu Mar 01, 2018 2:09 am

Packo

Packo
Silver member
Silver member
No, it came with an outfit I bought
I have an idea someone on here wanted to get one a few years ago and it was several hundred $$$ but don't quote me on that
Might be an idea to post a request on the ADV rider forum in the "Hacks" section as well, you never know what it might turn up


__________________________________________________
______________

83 K100 HRD outfit
77 R100RS
2008 K1200S
1983 K100
    

35Back to top Go down    Re: Rear wheel adaptor on Thu Mar 01, 2018 3:01 am

Saxon7

Saxon7
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Yeah, those are the kind of skills I'd like to have.
Instead I have a degree in languages. Handy for translating those pesky BMW ads.....

    

36Back to top Go down    Re: Rear wheel adaptor on Sat Mar 17, 2018 8:14 pm

Albyalbatross1

Albyalbatross1
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@Crazy Frog wrote:Years ago, I sent a sub-frame and a car wheel adapter in Aussieland. The problem is that I don't remember to which member I sent it. It may have been to Alby but not sure about it.
No.. It was not me. I got mine made by Boxer Metal.


__________________________________________________
84 K100 RS..Love this bike..
Most of the time anyways..
    

37Back to top Go down    Re: Rear wheel adaptor on Sat Mar 17, 2018 9:01 pm

MartinW

MartinW
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I don't know whether you have one where you are located. But we have a local pioneer village called Old Petrie Town. Amongst the various old houses and shops are quite a few trades run by retired tradesmen. They have a casting plant, a blacksmith, a woodshop, steam shop and a metal shop. I am going to join the metal shop in 3 months when I retire. The metal shop has all the required machinery and includes a couple of lathes a turret mill and a CNC machine. I was talking to one of the members who also has a 3d printer and undertakes 3D printing jobs.The joining fee is $30.00 Au per year, there are tradesmen available willing and able to teach you how to run the various machines. I've already had the casting plant do a job for me, for a reasonable price.
All the trades will undertake one off jobs for a price, or you can join which is probably cheaper and pick up some new skills.
Regards Martin.


__________________________________________________
K75s Hybrid
    

38Back to top Go down    Re: Rear wheel adaptor on Sun Mar 18, 2018 12:00 am

Saxon7

Saxon7
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MartinW,
I don't think I've got anything like that where I live( small country village). There's a men's shed here though... I can always go and see if they can point me in the right direction.

Hey ALby, long time no see!

    

39Back to top Go down    Re: Rear wheel adaptor on Fri Jan 25, 2019 6:14 pm

Waz

Waz
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Life time member
Sean
Have you had any luck finding adaptor? I just sent BSA wheels a message, they seem keen to make one for mine.


__________________________________________________
1987 K100 RS
1997 R1100R
1996 R1100GS
    

40Back to top Go down    Re: Rear wheel adaptor on Sat Jan 26, 2019 5:14 am

Saxon7

Saxon7
Life time member
Life time member
Hello Waz!
No I haven't yet, mate. Life getting in the way etc. I doubt we'll find one ready-made anywhere second hand, as people tend to hang onto them.
Let me know how you go with your search.

How's the project coming along? Any pics?

Things have been busy of late but I hope to paint the sidecar fuselage over the next week or so. Then I have to look at fitting the chair to be bike... getting the bike to run properly ...oh and... maybe get some brakes working Hehe;

Cheers
Sean

    

41Back to top Go down    Re: Rear wheel adaptor on Sun Jan 27, 2019 5:46 pm

Rockman

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Just food for thought. 15" rim bolted onto a cutdown bike wheel (yamaha in this case). Might be something you could do with a BMW wheel.

    

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