Ok heres my 87 K100RS with RT fairing and bars
plus home made 'flip up' which works very well
I made it up out of some spare perspex and used a hot air gun to shape it.
I also made up a level tail rack for the Givi plate too.


and my Honda CX 'Bitsa' shopping trolley/daily hack
made up from odds and sods
78 frame 82 engine, Suzuki clocks, MZ screen and fork gaiters
Kawasaki master cylinder,BMW horns plus various other home made bits
wiring harness and such like

That's the true DIY spirit to make up a running bike from disparate bits, good on you!
Regards,
K-BIKE

Is there a chance you can post some close up pics of your horz givi mount. I'd love to do something similar on my K1100RS.
Malcolm

I really like the look of the black wheel with polished edges and was going to compare them to the comstars but thanks to the second pic I don't have to.

I am afraid I miss my old CX. Not the prettiest of bikes but certainly had character which, for a Jap bike, is unusual.

Would you be able to post some close ups of you screen mod as I tried to do a similar thing to mine and although the end result was effective just very crude.

Regards,

Phil

What???
close up pics ??
Oh dear, not sure about that
Y'see at the moment I can maintain the impression
that its all been done to the highest standards and
no one has an inkling of my ham fisted incompetence
and utter lack of attention to detail.

Cor blimey, I dunno mate. Yer asking a lot here y'know :pale:

You are welcome to send me an email or a PM and I won't divulge the standard of engineering and I think I said in another post with a picture of my bike how much distance improves the look of things.

Regards,

Phil

OK dredging my memory, this is how I did it

Tail Rack:

Materials:
25 X 2 mm steel strip
15 X 2mm angle
and 4 X 6mm bolts which I sawed the heads off

I cant remember the length off hand but checked there
would only be thread showing inside when fitted.
About 50mm or so I think.

First I cut two 150mm lengths of strip and drilled
8mm holes at the relevant points
this allowed for the angle of the bolts.
I put a large piece of cardboard box over the tailpeice
and peirced the holes to hold the bolts in position.
(The old box helps protect the bike from sparks as well)

I put the strip in place and pushed the bolts down through
whilst checking I had enough thread inside for thick rubber
tap washers and then some.

Next a few quick tacks on each bolt to hold them in place
and filled in with the peices away from the bike.
lastly I ground off any protuding bolts flush (ish).

when they were cool I fitted the peices to the tail section
I made the plate for the box and offered it up to the rack
to get an idea of what legs I would need.
these were cut from the 25mm strip.
You have to bear in mind the size of the box and its position
whilst doing this and I finally decided on the sizes and positions
of the legs.
I cut them to length amd tacke them on the late and offerd it up again
and few wee cuts and mods here and there and a quick tack on to
the bases
I then rmeoved it for final welding, clean up and painting
There are some strips of old inner tube under the base and thick
tap washers between the nut and washers and GRP tail section inside

The first plate was quite big in order to accept an old Rickman box
which was permanently bolted on.
and has since been hacked down for a Givi plate/box I was given
It was only a Monolock but hey its free.
I only have two bolts on this plate and will mod it to accept
a more robust fixing later.
Its been on there for over a year now and had all manner of stuff on it
without problems.







Flip up
Why?
I rode back to Bristol from near Aberdeen in Scotland one day and the RT fairing was great but the wind noise around my head was really awful
After a couple of hours I was trying to crouch down behind the screen
for some relief from the noise.
I'm 6 foot three BTW, were I not so tall this may not be an issue.

the RT screen has a flip up, but in my case it doesnt help.

Shortly after, I found a peice of perspex lying in the back garden of my sons house and thought "Aha! I'll get experimenting"

I broke scratched and split a lot of it, luckily it was a large sheet
and after a couple of tries made up the current one.
I made the outline first then use a hot air gun to get it to follow the shape of the original flip up.
Thick welding gloves really helped save my fingers here.

I used rubber washers and O rings on the fixing bolts to try and prevent
stress fractures
I know a better quality perspex would be better but this
is an experiment, a work in progress if you like.



Anyway with it fitted I took the bike for a spin up the motorway
and was delighted that I'd proved the concept.
I found I could ride at 100MPH with my visor open ( theoretically Officer) and on longer rides since, its been a success.

Now I have the pattern, I can use it to make another from better quality
clearer material when I get hold of some.
the shiny strip was just a bit of left over tank edging I bodged on.

Great description and thanks for that and don't sell yourself short as my version of a flip up was vastly worse and I will just say there was some duct tape involved.

But as you say it was a proof of concept and the "curse" of being tall although I am not sure what height you would have to be to fit the standard screen and still be able to put both feet flat on the ground.

The only trouble I had was it seemed to put too much pressure on the screen and it started to bend downwards as speed increased.

I am thinking of getting a complete screen made of high impact acrylic which is actually not that expensive but shaped like the taller screens or making a more refined flip up like yours. Trouble is I have also had a close look at a K1100 electric screen and except for the mechanism is a vastly simpler design so the thought of making a manual version is also ticking over in my mind.

Regards,

Phil

Phil,
Just remembered.
My first version was fixed to the inside of the main screen
and was a kind of continuation of that following a similar curve.

This did suffer from stress fractures and was binned
This latest experiment seems to be coping well indeed and I see no
similar cracks appearing.

There are probably better and high screens available if you can afford them
but I have to work on shoestring budget here right now

Thanks for that and I can empathise with the budget scenario and trying to keep a K, or any bike for that matter, on a budget is tricky at best. Not the cheapest of hobbies.

If I purchased a pre-manufactured screen it would cost over $200 AUD but we have a perspex guy just up the road from where I work who will custom make one for about $75 which is manageable.

Regards,

Phil