BMW K bikes (Bricks)

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1Back to top Go down   Seeking advice Empty Seeking advice Fri Jun 18, 2021 11:07 pm

Barnie68

Barnie68
active member
active member
Hi everyone. Me and my mate are going to be building a trike out of my k100 lt. 
We are looking for some advice we were wondering if anyone had a idea of which car axel to use. 
I have seen some with bmw axel’s but not sure of model. 
We were thinking of using a ford Seira one but not sure if the gearing would be right. 
All advice would be greatly appreciated. 
Can you help me get me and my wheelchair back on the road after my spinal chord was damaged. 
Thanks 
Barnie68 
😎

    

2Back to top Go down   Seeking advice Empty Re: Seeking advice Fri Jun 18, 2021 11:32 pm

RicK G

RicK G
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WelKome to the Knuthaus Barnie great to see you determined to get back on the road again.  The E36 3 series BMWs from mid nineties would give you a big range of ratios to choose from. I would be inclined to go for a ratio of about 3.25 and then a final adjustment can be done with tyre profile choice. 
Spring rate will be a challenge and special make would be needed so best there to check out a specialist spring maker who would have all the necessary info to hand.
The E36 has a bolt in subframe to hold the whole setup but I am not familiar with the Ford as they were not sold in Oz. One other make is the Datsun/Nissan 180B from mid 70s but they could be hard to find nowdays.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

3Back to top Go down   Seeking advice Empty Re: Seeking advice Sat Jun 19, 2021 1:27 am

Barnie68

Barnie68
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active member
Thanks rick i will look in to it.
Im not the technical type but my mate is i will show him your answer he will understand what your saying.
As for the datsun the last time i seen one of them it was a 120 Y i think but that was back in the early eighties i was still at school. I am now 53 think you maybe right about rare especially in our wet damp atmosphere 😂😂
Thanks again
Barnie68
😎

    

4Back to top Go down   Seeking advice Empty Re: Seeking advice Sat Jun 19, 2021 4:37 am

moriarti

moriarti
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Life time member
Hi Barnie, A member on the forum used a RELIANT rear axel with some success,Best of luck  with the project Very Happy Very Happy


__________________________________________________
1984 k100 rs red/black VIN  0004449
    

5Back to top Go down   Seeking advice Empty Re: Seeking advice Sat Jun 19, 2021 6:22 am

Dai

Dai
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Life time member
Reliant axles have to be turned upside down, the oil filler welded up and a new one tapped on the other side. Hmmm. Upside down. May be it would suit an Aussie trike after all Very Happy

Main thing is: check the direction of drive in the diff compared to the K driveshaft. Secondly, given the state of some of the non-sealed roads out there, don't even consider a 'swingarm' type backend. Go the whole expensive route of IRS (independant rear suspension) - it's the difference between a Holden and a Rolls-Royce and if you are a wheelchair user, your back will definately thank you for it. Also consider this: unless the trike is properly planned, you can actually end up with less carrying space than a solo. At the very least, aim to get a full-width carrying rack on the back.

No, I'm not a trike expert. My interactions have been limited to test riding them after I've rewired one.

Ah! Just seen you're in the UK. Try talking to the Trike Shop down in Cardiff and if you haven't already done so, join the NABD. They are possibly the world's best resource for information, expertise and help for bikers with a disability. And they have a damn good rally every non-Covid year... Very Happy


__________________________________________________
1983 K100 upgraded to K100RS spec, 1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

6Back to top Go down   Seeking advice Empty Re: Seeking advice Sat Jun 19, 2021 1:20 pm

Two Wheels Better

Two Wheels Better
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Moderator
Barnie, welcome to the forum. It's generally accepted (actually, required) that new members make an intro post in Member's Introduction before posting questions and threads into the general population. Ta.


__________________________________________________

1970 R60/5, OZ '77 R75/7-R100, '85 K100'87 K75C, OZ '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT & 2013 R1200RT-Polizei  - Beemers owned still or sold.

~We all believe what we want to believe in - Rob Dickinson
    

7Back to top Go down   Seeking advice Empty Re: Seeking advice Sun Jun 20, 2021 5:15 am

Barnie68

Barnie68
active member
active member
Hi dai. Thanks we were looking at putting air suspension in.
Or a ford Seira one with independent suspension.which are very good but becoming quite rare ans now go for silly money.
Both me and my mate have had trikes before so we sort of know whats we need but i had seen a few photos with bmw trikes and they had bmw axels and wheels so i thought that maybe the ford might not be so good so i told my mate i would ask in here to see if anyone had a better idea.
I am a member of nabd and yes they are a great group for disabled advice.
I have been a biker for 30 years had many bikes and a couple of trikes but never had a bmw so have knowledge about their axels or what would be best suited.
But thanks for you reply we will look in to E36 someone has suggested.
We have ruled out the reliant due to the suspension issues also they to are starting to get rare due to the fact they became a axel that a loy of trike builders used for years.
I will ask a few of the bmw riders in the trike groups i am in to se if they have any info.
Thanks again you have been helpful.
Stay safe
Barnie
😎.


    

8Back to top Go down   Seeking advice Empty Re: Seeking advice Sun Jun 20, 2021 5:39 am

Barnie68

Barnie68
active member
active member
Hi two wheels better thanks for telling me the site rules.
I joined this group a while ago now and knew that rule and i thought i did introduce myself at the time obviously i never.
So here goes im a 53 year old biker who is Scottish but has lived in london for 33 years so i may now be english now lol
I have been riding bikes and trikes for nearly 30 years. That was until i had spinal surgery which went bad and put two holes in my spinal chord 10 years ago. That left me at first paralised from the neck dow but with flailing arms with very little controL.
So i am now a c4/5 incomplete quadriplegic. i have been doing physio my self since i came out of hospital 9 years ago finally got enough streanth to try riding again only to find out i had no balance anymore or i could not swing my right leg over a bike.
The very two basic skills you need to be a bike so a trike it is and has to be built to my exact pacific spec so my disability dont get in the way. It is going to be a long process as being disabled you have to a lot of trial and error to se what works with your body restriction.
I guess that is enough of a introduction but if anyone needs more or if i have to do it on a certain place please feel free to inform me after all i dont want to rock the boat.
Ride safe and take care it there turns out there is now more than volvo drivers out there trying to kill us all lol
Barnie.
😎

    

9Back to top Go down   Seeking advice Empty Advice seeking Sun Jun 20, 2021 6:00 am

Barnie68

Barnie68
active member
active member
Hi everyone
I just found out i never introduced my self i thought i did when i first joined but it turns out i was wrong so:
My name is barnie68 i am a Scottish biker and triker who has lived in London for 32 years so i may now be english now lol 
I have been disabled for 10 years after spinal surgery which left me a c4/c5 incomplete quadriplegic. 
I finally felt fit enought to try biking again as all my friends are still bikes so i bought a k100 lt to transform in to a trike. 
I have had many bikes over the years but now cant lift my leg over the seat now and now have no balance a big skill needed to be a biker lol. 
So was told about here so i thought it would be the best place as i have no knowledge about bmw bikes that is apart from on some models you should not lean it over too much in a corner due to the cylinder heads as my old mate Charlie found out one day on a nice bendy road when we were having a play. 
One broken arm later it turns out he  really could not  lean it over as much as my old gsxr. Who knew !! 
I am now building a trike with my k 100 was told this was a good group to get advice. So here i am. 
Barnie
😎
Ps i will be selling the back half of my bike including standard seat at some point as i wont need it but i will put that in the buy and sell page when i know exactly wot i no longer need.

    

10Back to top Go down   Seeking advice Empty Re: Seeking advice Sun Jun 20, 2021 9:58 am

Dai

Dai
Life time member
Life time member
Seeking advice 177912 again  Seeking advice 44271


__________________________________________________
1983 K100 upgraded to K100RS spec, 1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

11Back to top Go down   Seeking advice Empty Re: Seeking advice Sun Jun 20, 2021 10:11 am

Two Wheels Better

Two Wheels Better
Moderator
Moderator
The boat needs to rock a bit to keep moving.

I have moved the thread to Member's Introduction for you.


__________________________________________________

1970 R60/5, OZ '77 R75/7-R100, '85 K100'87 K75C, OZ '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT & 2013 R1200RT-Polizei  - Beemers owned still or sold.

~We all believe what we want to believe in - Rob Dickinson
    

12Back to top Go down   Seeking advice Empty Re: Seeking advice Sun Jun 20, 2021 2:39 pm

Barnie68

Barnie68
active member
active member
Thank two wheels.
I did work out after i replied to your message how to do the introduction post and done one.
I hope i posted the right sort of information that the other members would like to know.
To be honest this forum stuff is new to me so i am hust trying to find my feet but i am happy to be guided by any advice i can get.
Thanks again
Barnie68
😎

    

13Back to top Go down   Seeking advice Empty E36 - E38 axel Sun Jun 20, 2021 2:56 pm

Barnie68

Barnie68
active member
active member
Hi RicK  G
Sorry to ask again i looked up a E36 axel’s for sale and i found a E38 full axel for a decent price and as i am on a very tight budget every penny really does count. 
I was wondering if you knew if there was much difference between the E36 and E38 in reference to the gearing and would the E38 still be a good choice ? 
I found out that the E38 is a more powerful car than the E36 but i am hoping that there will not be too much of a difference between the two. 
I am hope yourself or any other members in the forum might know the answer to my question. 
Thanks again
Stay safe 
Barnie68

    

14Back to top Go down   Seeking advice Empty Re: Seeking advice Sun Jun 20, 2021 8:21 pm

Barnie68

Barnie68
active member
active member
Hi i think i have solved my own questjon by looking on the internet and the gear ratio’s the bike is 2.91 and i found out the E38 has a gear ratio of 2.93 so i am hoping the two should be a good match but if anyone thinks i am wrong please let me know as i think i have located a decent cheap axel and i want to try buy tomorrow if it is the right one. 
Thanks for all the comments and advice i have been given so far. 
Barnie68
😎

    

15Back to top Go down   Seeking advice Empty Re: Seeking advice Mon Jun 21, 2021 1:25 am

Barnie68

Barnie68
active member
active member
Hi everyone. I forgot to post that my mate who is building my trike had his last build a alpha sud 1900 cc engine based trike featured with a center page spread in BSH before covid. 
He done it all himself in his garage and nearly every rally he went to on it he won the best engineering prize. 
He is not even a pro trike or bike builder he is just the same as me and you a biker with a passion for all things with a engine. 
So with him building and your advice when i ask hopefully will get me the ride i need to get me to the rallies. 
I will be happy to post pictures of the project as we go along. 
Barnie68
😎

    

16Back to top Go down   Seeking advice Empty Re: Seeking advice Mon Jun 21, 2021 7:05 am

92KK 84WW Olaf

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Life time member
So my daughter lives in Long Marston near Tring......up from her is Ben Kingham at BSK Speedworks at Leighton Buzzard....aiming to get over there in August!


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 37,190 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 42,640 miles.

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

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