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1Back to top Go down   My beautiful BMW K100 Trike Empty My beautiful BMW K100 Trike 13/02/14, 06:30 pm

Symbolizm

Symbolizm
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My new toy and hopefully after all the work I've done over the last few weeks it will pass the mot Smile
My beautiful BMW K100 Trike 381ss10
My beautiful BMW K100 Trike 385s10
My beautiful BMW K100 Trike 390s10



Last edited by Symbolizm on 25/08/16, 03:07 am; edited 1 time in total

    

klamityboy

klamityboy
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Very interesting. A nice change from cafe-racer pics.  Big thumb


__________________________________________________
Klamityboy
1991 K75RT-P

Model Description: K 75RT
Market: Europe
Type: 0565
E-Code: K569
Engine: 3_ZYL - 0,70l (55kW)
Transmission: Manual
Body Color: Polizeiweiss
Production Date: 30.08.1990
    

92KK 84WW Olaf

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It looks really good. I had this feeling too it was like a roman chariot, stand on the back holding the reins.

Seriously it looks the business and yes its nice to see something different.


__________________________________________________
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 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 49,200 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 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
    

Kyle10

Kyle10
Life time member
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That is a very clean conversion. Well flippin' done.
I'd love to see a storyboard montage of how you pulled this off. Incredibly professional looking.  My beautiful BMW K100 Trike 112350

    

smithy

smithy
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It looks like your've tried to fit later model side covers to the early ducktail , then had to teck screw them on. That's one way to keep them in place.


__________________________________________________
87 K100rs : Vin 9462 
86 K100rt : Vin 9901
Naked
98 K1100lt: Vin 8044
    

Symbolizm

Symbolizm
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Thank you for all the kind comments guys, much appreciated!

    

chrispoole

chrispoole
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realllllly clean!

http://cmichaelpoole.com/
    

rosskko

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Very nicely done.
Top paint job.

Just wondering what the gearing is like?
Being able to fit a diff with alternate gear ratios (from the standard K) would be a bit of fun. Trying out a bunch till you find something that works.


__________________________________________________
1986 K100RT VIN 0093801K100RT with summer fairing for a northern visitor

Basic/2 6308802K100CJ  05/1988

K1100RS 0194321
    

GTJos

GTJos
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Silver member
Very Happy Well now... that súre is something different than the obligatoire Harley or Honda ! Congrats on a job well done !
I'll keep my fingers crossed for you, passing the mot ! Good luck and thank's for the post.
Cheers

Jos


__________________________________________________
My beautiful BMW K100 Trike Deutch10Ich bin enge Kirchröatsjer jong; adieë wa ?! My beautiful BMW K100 Trike Deutch10
                                1992  K1100LT 6458188
                                1987 K100LT (RS-fairing) 0170844 + sidecar EML GT2001
                                1986 K100RS 0085647 + sidecar Velorex 562
                                1985  K100RT  0027026
    

AL-58

AL-58
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rossko wrote:Very nicely done.
Top paint job.

Just wondering what the gearing is like?
Being able to fit a diff with alternate gear ratios (from the standard K) would be a bit of fun. Trying out a bunch till you find something that works.

Those choices are already there Rossko. i cant quote the ratios from memory, but the highest revving/lowest top speed is the K75 range, lowest revving/highest topspeed is K1, with around 5 steps in between.

Al


__________________________________________________
'08 F650GS (798cc)
'19 R1250RS

+ another boxer engined motorcycle and sidecar

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

My beautiful BMW K100 Trike K-dogs10
    

bushyintas

bushyintas
Silver member
Silver member
Great work!

I too would like to see more detailed photos,

I like this idea better than adding a chair, will keep in mind as both the K and I get older.


__________________________________________________
Bushy

k100 RT 1988 #0095723
K100 RT 1984 into Custom Single seat.  #0024503
    

xpc316e

xpc316e
Gold member
Gold member
I must be honest and admit that I am not normally a fan of trike conversions, but this looks really attractive.  A lot of attention to detail has been paid, for instance the BMW car alloys on the back.  I hope that it goes as well as it looks.  Good luck with the MOT test.

We do need more pictures, by the way, especially of the rear suspension and final drive arrangements.


__________________________________________________
VIN 0191428, 1991 K100LT, formerly owned by Lancashire Constabulary. This old warhorse is now 'out to grass' and living in retirement in Suffolk, where it will be showered with appropriate love and care.

VIN 6459609, 1992 K1100LT, another ex-Police machine, even though she now looks like she is a former fire engine.
    

Symbolizm

Symbolizm
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active member
Shortly as soon as I get some time I will post some photos showing more details Smile

    

martyman

martyman
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Silver member
very cool...I would also like to see the details.  How did you decide the width of the rear?

    

Symbolizm

Symbolizm
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active member
Today while I had the panniers off to align them, I took the opportunity to take some more photographs hopefully showing a few more details.  I have to be totally honest I did not build this trike from scratch and purchased it at the beginning of February as a project.  The diff is a Reliant 'A' version which I believe has an axle ratio of 3.23/1, the rear tires are 195 65 R14 which equates to a diameter of 24 inches and when matched with the K100's transmission ratio in 5th gear of 1.61 at 70 mph the engine speed would be 5100 rpm, I'm sure someone out there will correct me if I'm wrong Smile



Last edited by Symbolizm on 25/08/16, 03:14 am; edited 2 times in total

    

rosskko

rosskko
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Interesting.

And it could have gone so very WRONG

My beautiful BMW K100 Trike _1210


__________________________________________________
1986 K100RT VIN 0093801K100RT with summer fairing for a northern visitor

Basic/2 6308802K100CJ  05/1988

K1100RS 0194321
    

Ed

Ed
Life time member
Life time member
Rossko , possibly the only positive with the ebay trike is the independent susp.
every thing else just looks awkward. the sideboxes leave very little room to swing a leg, but do make good arm rests.
nice looking trike Symbolizm , enjoy your K ride.


__________________________________________________
1993 K1100RS  0194321         Colour #690 Silk Blue  aka " Smurfette"
2018 Kart upgrade.
My beautiful BMW K100 Trike 10_x_110
    

xpc316e

xpc316e
Gold member
Gold member
http://www.ebay.co.uk/itm/231159675506?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

This K75 trike also looks quite nice; it has an independently suspended Jaguar rear end.  Not going to be many of those lying around now, as most have been snapped up by hot rodders.


__________________________________________________
VIN 0191428, 1991 K100LT, formerly owned by Lancashire Constabulary. This old warhorse is now 'out to grass' and living in retirement in Suffolk, where it will be showered with appropriate love and care.

VIN 6459609, 1992 K1100LT, another ex-Police machine, even though she now looks like she is a former fire engine.
    

92KK 84WW Olaf

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Yellow cable ties???????

It is a very interesting project but yellow cable ties? ???

There were a lot of threads about white cable ties. . . .

Love to see this project though, there is hope for all of us. I have a friend locally here who had a choice of give up bikes or get a trike and they are awesome. There is also a magnificent Honda CBX trike being ridden by a guy who had an accident. But they are great fun in their own right.

Now where did I put the black cable ties?



Last edited by 92KK K100LT 193214 on 17/02/14, 08:31 pm; edited 1 time in total (Reason for editing : Typos.)


__________________________________________________
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 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 49,200 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 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
    

TacKler

TacKler
Life time member
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92KK K100LT 193214 wrote:Yellow cable ties???????

It is a very interesting project but yellow cable ties? ???

There were a lot of threads about white cable ties. . . .
 affraid Something about .... real men use black.


__________________________________________________
Red 1991 K75S
    

Symbolizm

Symbolizm
active member
active member
Ok just for you guys I'll be a real man and change the cable ties to black, well maybe Smile  Anyway for the good news it passed the mot today, so I'm nearly road legal, just need insurance and road tax and I'll be cruising baby!

    

22Back to top Go down   My beautiful BMW K100 Trike Empty My beautiful BMW K100 Trike 17/02/14, 07:14 pm

Pat O'D

Pat O'D
Silver member
Silver member
Great looking Trike enjoy the miles

Pat


__________________________________________________
1991 K100LT Red (VIN 0191558) 138000 Miles 

My beautiful BMW K100 Trike Ir-log10
    

Kyle10

Kyle10
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So that's a s-s-solid r-r-rear end?
Seems it might be a tad skitterish.

    

Symbolizm

Symbolizm
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Yes your correct the trike features a hard tail and so far once you get used to the ride and have the correct rear tyre pressures the ride is relatively smooth.

I have only one concern and that is a strange noise when first starting the engine from cold (clanking & erratic) after not starting for a few days, but if you restart the same day it's fine.  Many say this can be the 6 rivet output shaft, cam tensioner or alternator bushes.  It is pretty noisy and quite embarrassing, but disappears after a few minutes.  The engine has only done 69k miles and was left sitting for a few years.  I will investigate this further, if I remember correctly using the clutch or selecting a gear makes no difference but will check again to be certain.  when changing the oil I did use Castrol GTX 10w 40 semi synth oil and a Champion C301 filter, not sure if that would make a difference?

    

92KK 84WW Olaf

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Glad it got through the MOT. Now you can enjoy it to. Best of luck with it.

Don't be offended about the cable ties, we had some fun on those a while back and it just reminded me of it. However I do have a bag of black cable ties hanging in my shed beside a bag of white ones.  The style police do come round to inspect at coffee meet ups..!



Last edited by 92KK K100LT 193214 on 17/02/14, 11:41 pm; edited 1 time in total


__________________________________________________
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 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 49,200 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 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
    

Kyle10

Kyle10
Life time member
Life time member
Symbolizm wrote:Yes your correct the trike features a hard tail and so far once you get used to the ride and have the correct rear tyre pressures the ride is relatively smooth.

I have only one concern and that is a strange noise when first starting the engine from cold (clanking & erratic) after not starting for a few days, but if you restart the same day it's fine.  Many say this can be the 6 rivet output shaft, cam tensioner or alternator bushes.  It is pretty noisy and quite embarrassing, but disappears after a few minutes.  The engine has only done 69k miles and was left sitting for a few years.  I will investigate this further, if I remember correctly using the clutch or selecting a gear makes no difference but will check again to be certain.  when changing the oil I did use Castrol GTX 10w 40 semi synth oil and a Champion C301 filter, not sure if that would make a difference?

Your rivets are probably sound. Likely its the output shaft tensioner spring. Sounds vaguely like diesel clatter?
This was the case with mine. Heluva chore getting to it but once you've got the output shaft in hand it's an easy repair, and worth the effort as your engine will astonish you with how smooth and 'right' it sounds.

Check here about halfway down the page for a great visual: http://hrsbstaff.ednet.ns.ca/bvogel/K100/K100.htm

    

92KK 84WW Olaf

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The only reason I would see an oil filter being the cause is if it took a while for the oil warning light to go out. If that goes out immediately then you have oil pressure so it shouldn't be a problem.

If its cam tensioner it should be looked at, especially if you are doubtful, it can wreck the engine. Would be a shame at this point. But those engines make noises and go on forever too.


__________________________________________________
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 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 49,200 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 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
    

Symbolizm

Symbolizm
active member
active member
Thank you for the suggestions and yes it does sound like diesel chatter, will take a look at the link.

    

Symbolizm

Symbolizm
active member
active member
Kyle 10 that is a great link with some amazing information and photos!  If the problem is the spring and it's not replaced for a while what is likely to happen, can the noise be lived with safely for a while?  How many hours do you estimate it will take for a novice to make this repair?

    

Kyle10

Kyle10
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Life time member
Symbolizm wrote:Kyle 10 that is a great link with some amazing information and photos!  If the problem is the spring and it's not replaced for a while what is likely to happen, can the noise be lived with safely for a while?  How many hours do you estimate it will take for a novice to make this repair?

A Great Mystery...

I don't know how long, as I don't know when it began and probably neither do you. Eventually the 'gnashing of teeth' will cause some major problems, but you could conceivably ride for many, many moons without anything more than the annoying rattle.

As for hours, it looks like you have experience dropping the engine? Factor in removal of trans/driveline, dropping the engine (or is it lifting the frame?). Once you've got the engine on a bench what will take you time is pulling the bearing that allows you access to the gears and that tensioner spring.

Oh, and order the spring well in advance and have it on hand - you can always return it if the spring is sound. You don't want to be staring at a gutted bike waiting for the post to arrive (voice of experience...). Have some decent locktite handy, too. And RVT. Oy, this brings back memories, not all of 'em good. But the result - if this is what ails her - will have you very glad you did the chore.

    

Symbolizm

Symbolizm
active member
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If the output shaft tensioner spring is the problem, would there be noise all the time, as I only have noise when the engine is stone cold and not started for a few days?


Also from what I can understand many of these engines can go on happily for many years with these symptoms and even if all the rivets or spring fail you will just loose all drive, so therefore I will live with it for now and make sure I have a good roadside assist company to help just in case.

    

92KK 84WW Olaf

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9 months have gone by...so how is the K now? And the rivets? Any interesting trips/photos over the summer?

Those K s really do go on forever so hopefully all is well with you.


__________________________________________________
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 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 49,200 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 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
    

Be made

Be made
Life time member
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92KK 84WW K100RT 022575 wrote:9 months have gone by...so how is the K now?
Has not posted since April. Hopefully he's been too busy riding to be here posting

    

Symbolizm

Symbolizm
active member
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Be made wrote:
92KK 84WW K100RT 022575 wrote:9 months have gone by...so how is the K now?
Has not posted since April. Hopefully he's been too busy riding to be here posting


Hey guys, what a Summer and the K has performed flawlessly, my love affair has grown with this machine on a monthly basis and the friends I have made are priceless!


Here's a few pics for anyone interested and I hope you all had an equally great Summer! Smile

My beautiful BMW K100 Trike 10168081_667168883349400_2861000510061319640_n

My beautiful BMW K100 Trike 10330400_669508146448807_8392819022159829811_n

My beautiful BMW K100 Trike 10341499_669510013115287_6276257764664910335_n

My beautiful BMW K100 Trike 1960069_748830868516534_8867728709447062275_n

    

92KK 84WW Olaf

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Nice ones there and great to see all is well.

Hope you might make it over here some time too.


__________________________________________________
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 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 49,200 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 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
    

Symbolizm

Symbolizm
active member
active member
92KK 84WW K100RT 022575 wrote:Nice ones there and great to see all is well.

Hope you might make it over here some time too.
Now that would be a great adventure and I'm partial to a lovely drop of Guinness! My beautiful BMW K100 Trike 112350

    

92KK 84WW Olaf

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Symbolizm wrote:
92KK 84WW K100RT 022575 wrote:Nice ones there and great to see all is well.

Hope you might make it over here some time too.
Now that would be a great adventure and I'm partial to a lovely drop of Guinness! My beautiful BMW K100 Trike 112350
Herein lie the seeds of another adventure......we have that Guinness stuff coming out of the taps all over the place here. Now if we could get Ks to grown on trees...


__________________________________________________
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 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 49,200 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 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
    

BIG D

BIG D
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Cool

That is one very nice trike  a credit to you enjoy and take care.

BIG D

    

92KK 84WW Olaf

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Symbolizm wrote:
92KK 84WW K100RT 022575 wrote:Nice ones there and great to see all is well.

Hope you might make it over here some time too.
Now that would be a great adventure and I'm partial to a lovely drop of Guinness! My beautiful BMW K100 Trike 112350

You got a great summer with the K.

Well, if you fancy a trip over some of us will be camping 1-10 August and we have a brunch and outing on Saturday 8 August at Stradbally in Laois, about an hour from the Holyhead to Dublin ferry port. If you like some more scenic routes its about hour and a half from Pembroke/Fishguard to Rosslare ferry port. You won't be the only one coming over, we already have 3 takers....

I am sure we will find a tap somewhere anywhere on the island that delivers Guinness.....


__________________________________________________
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 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 49,200 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 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
    

FatRakoon

FatRakoon
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Symbolizm

Symbolizm
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Very nice conversion FatRakoon, mine is having a rear end re-build at the moment very similar to yours, it will no longer be a hardtail, which has to be better for my back!

    

Motorbike Mike

Motorbike Mike
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Well done!
That's the nicest Trike I've seen.

    

Rick G

Rick G
admin
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It is hard to make a trike look good without a fibreglass body but you have done well by keeping it simple and not getting the harsh naked look that many get


__________________________________________________
"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 1999 K1100 LT with a Big Block 1200
    

Ed

Ed
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Nice work guys . Basic designs are what allows others to be inspired to create the lavish . keep it up .
how about adding a Konversion section for Trikes and others in that Kategory. some great koncepts of the K bike to be seen out there .


__________________________________________________
1993 K1100RS  0194321         Colour #690 Silk Blue  aka " Smurfette"
2018 Kart upgrade.
My beautiful BMW K100 Trike 10_x_110
    

walfish

walfish
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You popped into the PowerHub biker cafe about a month ago, in Maidstone. 

My beautiful BMW K100 Trike 20150811




My beautiful BMW K100 Trike 22936



Last edited by ungaas on 12/09/15, 09:10 am; edited 1 time in total (Reason for editing : It's the same bike)


__________________________________________________
My beautiful BMW K100 Trike Uk-log10
                            88 K75 S 0107569 (she's a keeper)
                            88 K 100  0033026 (gone)
   
                            92 K 1100 LT  6455097 (gone)
    

FatRakoon

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Symbolizm wrote:Very nice conversion FatRakoon, mine is having a rear end re-build at the moment very similar to yours, it will no longer be a hardtail, which has to be better for my back!

Thank you.

Yes, the ride is very smooth.

My only issue, is just how hard it is to turn the thing.

That is what I will be doing sometime this year, or during the winter anyway. At the very least, I will be bringing the bars higher and further back, and wider. to get just a little more comfort, and allow a better and easier turn.

I also want to put forward footrests on, but I am pretty much stuck as to how, and not make it look ugly.
I was seriously considering forward controls, but I have decided its not worth the effort.

One final option, is one that I am seriously considering is a two part job and thats the braking system.
Conversion from drum to Disc and linked brakes so that both the front lever and the back pedal, brake all 3 wheels. This thing has the most god awful brakes that I have ever seen and they seriously need upgrading.

It does brake adequetely, but I would feel a whole lot better if it stopped quicker than it does.

    

Dai

Dai
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I think I might know the answer to your brake problem. Assuming that your drum brakes are hydraulically operated and everything is okay, then the problem is in the brake leverage ratio (movement of the brake lever vs. movement of the piston in the master cylinder). A car has a 6:1 leverage ratio whereas a bike is 4:1. I'll bet the rear brakes are a car master cylinder driven by a motorcycle brake lever.


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

AL-58

AL-58
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FatRakoon wrote:
Symbolizm wrote:Very nice conversion FatRakoon, mine is having a rear end re-build at the moment very similar to yours, it will no longer be a hardtail, which has to be better for my back!

Thank you.

Yes, the ride is very smooth.

My only issue, is just how hard it is to turn the thing.

That's why many sidecars have leading links, a trike has the same issue of too much trail in the front suspension.  You need to push the front axle further forward (not by raking the steering head, this will make it worse by increasing the trail further).  Custom triple clamps that offset the forks further or rake just the forks forward will achieve this.

Al

Al


__________________________________________________
'08 F650GS (798cc)
'19 R1250RS

+ another boxer engined motorcycle and sidecar

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

My beautiful BMW K100 Trike K-dogs10
    

FatRakoon

FatRakoon
active member
active member
Dai wrote:I think I might know the answer to your brake problem. Assuming that your drum brakes are hydraulically operated and everything is okay, then the problem is in the brake leverage ratio (movement of the brake lever vs. movement of the piston in the master cylinder). A car has a 6:1 leverage ratio whereas a bike is 4:1. I'll bet the rear brakes are a car master cylinder driven by a motorcycle brake lever.
Bingo!
It is yes. its using the car cylinder!
Ok, thats great... I know the path to the solution. Thank you.

    

FatRakoon

FatRakoon
active member
active member
AL-58 wrote:
FatRakoon wrote:
Symbolizm wrote:Very nice conversion FatRakoon, mine is having a rear end re-build at the moment very similar to yours, it will no longer be a hardtail, which has to be better for my back!

Thank you.

Yes, the ride is very smooth.

My only issue, is just how hard it is to turn the thing.

That's why many sidecars have leading links, a trike has the same issue of too much trail in the front suspension.  You need to push the front axle further forward (not by raking the steering head, this will make it worse by increasing the trail further).  Custom triple clamps that offset the forks further or rake just the forks forward will achieve this.

Al

Al


Im now very confused.

I was told to first increase the rake by getting yokes that allow me to push the frotn out a little.

I was then told to get Leading forks as this will be a better option.

I was then told that leading links are old tech and no one does this anymore because it does not work and will make it harder to ride.

And then I was told that I would be better off simply getting lober forkes, and this will raisew the front a few inches, therefore, pushing the front end out a little in the process, and this wil be the best way!!!

Sheesh!

And now its back to the leading links idea?

So, leading links WILL help the steering yes?

I am definitely getting wider bars, that are a little higher, and further back towards me, for both comfort and better leverage , but this will onlt help so-much.

The suspension in the rear is using a combination of the stock bike shocks, plus extra support from 2 more shocks, and I have been tols that independant rear suspension will also make life easier.... Not cheap though.

All options, but the trike is a 1984 model and so not a young vehicle by any standards, and its cost me a few grand already...  I dont want to keep spending money on it that I dont have, only to get minimal benefit from the work done.

Id rather have huge arms to be honest. LOL.

    

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