BMW K bikes (Bricks)

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touchwoodsden

touchwoodsden
Silver member
Silver member
I am new on here and even newer in the sidecar section.
 
I’m fitting a Hedingham (UK) Sports Chair onto a K100LT.
I have Wasp subframe and forks and 15 inch wheels.
As fitting the subframe involves removing the centre stand and without a centre stand you can’t fit the wheels and the forks and even if you did fit the wheels and forks, you can’t get it off the centre stand, that bit is going to be interesting. I understand that it needs hoisting up to the roof!
 
I got some work to do on the bike first including painting all the plastic and the chair but most of the stripping (as far as I’m going) has been done.
 
Anyway, that isn’t the question or reason that I’m posting in this section. The LT has rubber mounted handlebars. I’m quite happy with the shape and style and riding position, but would anyone suggest firmer rubbers or rigidly mounting?


Thanks for replies
 
Watch this space
 

J

    

robmack

robmack
Life time member
Life time member


__________________________________________________
Robert
1987 K75 @k75retro.blogspot.ca
http://k75retro.blogspot.ca/
    

Born Again Eccentric

Born Again Eccentric
Life time member
Life time member
touchwoodsden wrote:
Anyway, that isn’t the question or reason that I’m posting in this section. The LT has rubber mounted handlebars. I’m quite happy with the shape and style and riding position, but would anyone suggest firmer rubbers or rigidly mounting?
James,

I don't know how adding a chair affects things but I would think that rigidly mounting the handlebars will give you a lot of vibration issues to your hands - that would not be comfortable for riding. The bar end weights are quite effective at dampening the usual vibration when the handlebars are mounted in the rubber mounts, so my thoughts are to leave it as it is.

When I got my current LT about 14 months back, my handlebars felt like they had too much movement in them (compared with my previous LT which felt much stiffer) - I tightened up the mounting bolts and have been happy with them since (I reckon that the PO had not tightened them properly and there was way too much play, which was disconcerting).


__________________________________________________
Handlebars on LT outfit? Rubber or solid? Uk-log10 Handlebars on LT outfit? Rubber or solid? Sco-lo15
                              Paul  Handlebars on LT outfit? Rubber or solid? 905546712

"Heidi" K100LT 1991 (Grey) (VIN 0190172 Engine No. 104EB 2590 2213) - 5th owner. January 2014 (34,000 - 61,000 miles and counting....)
"Gretel" K100LT 1989 (Silver Grey) (VIN 0177324 Engine No. 104EA 2789 2211) - 4th+ owner. September 2015 (58,500miles and counting....). Cat C Insurance write-off rebuild Feb 17
"Donor" K100LT 1990 (Red)  (VIN 0178091 Engine No. 4489 2024) - 6th & final owner (crash write-off now donor bike).   June 2012 (73,000 miles) to November 2013 (89,500 miles)
    

sidecar paul

sidecar paul
Life time member
Life time member
Hi touchwoodsden,

I've been using the rubber mounts for 27 years without any problem but I do have the short RS bars. 

Wasp forks subframe and wheels are the best option IMO, (well, that's what I've got!)

If you find that the rubber mounts are a bit flexible, it is possible to tighten them by adding some 10mm 'penny' washers under the rubbers.
Bear in mind that the standard 8mm washers and nut tighten up to the shoulder on the handlebar clamp.

Paul.

Edit: Second thoughts, it's probably easier to drill out the standard washer to 10mm clearance and add a normal 8mm washer under the nut.


__________________________________________________
'84 K100RS (0014643) (owned since '85), 86 K100RS (0018891) with Martello sidecar (built as an outfit in '88),
'51 Vincent (since '67),'72 Montesa Cota (from new), '87 Honda RS125R NF4 (bought 2015) 
....No CARS never ever!
    

AL-58

AL-58
Life time member
Life time member
I use a K75s top triple clamp. No bushes at all.  The steering is now very direct, feels much better than it did with handlebars that move.

I've run these on all my K sidecars since I discovered them.


Al


__________________________________________________
'87 K100RS/HRD sidecar (1100 motor)  sc25 

'87 K100RT with Paralever backend

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

Handlebars on LT outfit? Rubber or solid? K-dogs10
    

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