Some photos of my latest work. I've hacked my brother's moped, so now he can ride to work regardless of weather conditions.
Simple, I would say "standard" sidecar frame. Only struts aren't typical, cause they are mounted to sidecar frame near the car's wheel. This is because such geometry gives a way lighter stresses to bike's frame and because sidecar frame can be made from thinner wall pipes.
This will be only "luggage sidecar", main it's work will be stabilizing the bike on snowy road and carrying about 20-30 kg loads.
Photos come from geometry testing ride. Few photos shows construction phase.
Now it only lacks a mudgiard, lights and some trunk. The trunk will be silmpy a large plastic toolbox, with bottom wall reinforced and weighted by 2mm steel sheet.
The minimal load to ride safely is about 30 kilograms, with such load the whole rig rides "naturally". If we can say that rigs ride naturally 😛
Lower front mount:
Lower rear mount:
Some detailed photos. Making a rear strut, frame detail (hook for rubbreband to mount luggage):
"Concept photo" with already welded frame:
Wheel is mounted on side swingarm, strongly inspired by Velorex. Only 15mm axle but it will not carry persons.
Looking good Igor.
15mm axle is quite sufficient. The early Velorex 15mm ones have held up many a 1000cc and 1100cc Gold Wings for thousands of miles in the US with some pretty hefty loads.
Lonnie
Hey, great, I love it! Very clever and it turned out very well. I think your brother is fortunate to have a brother like you. Hope you have a lot of fun with it. Neat little bike too.
Hello Igor,
wellcome back. We haven't heard from you the whole summer.
How is your first rig behaving?
Did You go with it to the Baltic Sea for camping or up into the mountains?
My Jawa soon will become a construction place too.
I broke the engine on a fishing trip and am waiting for the Husquarna 450 engine to be fixed.
Best regards from the other side of thebig pond.
Sven
Peter, my first (own) rig still helps me 🙂 Yes, I was on camping in mountains with it. And it carried two post-army 10-person tents to camp-base. And many other rides.
I also started to build a trailer for my colleague's 125cc:
Das ist was ich Initiative nenne. That is what I call initiative.
My Grandaunt Lene could say it in Polish too.
You recycle well by converting military equipment and amo boxes into usefull stuff.
In my job I often have to improvise as You do accourding to mandatory: "Drive at 100km/h, but without gasoline."
Improvising in this way but with a good theorical base You will become a good profesional.
Seeing your brother's moped I remember a baker who saw my Jawa rig once and made up a sidecar for his Vespa for to ease his delivery tours.
All that is needed is inspiration and a proactive attitude for to get things done.
I wish You best luck.
Sven
In Polish you could say "To sie nazywa inicjatywa"
This military box is my colleague's choice. I said "this will be your trailer, you choice ingredents, I can mix and convert everything, so youcould tow it behind your bike". So he chosen such strange box, this small box (sure rugged and IP67, ideal for tools). Big box is foldable and if folded, it can act as platform to carry "non-normative" loads. Whole trailer will be foldable. A towing bar will be interchangeable with a pulling bar to use it by hand. After detaching towbar, mudguards and wheels (12 bolts at all) and folding the main box, the trailer will be able to be stored in small basement.
Esto si llamo iniciativa.
For sure the romans have left their heritage in all european languages.
"inicjatywa" is the only word I could understand.
(by the way in the Polski sidecar forum You have to understand Polish for to be able to get into the part for non polish speeking foreighners)
The idea of multi use for the trailer is great. I'd love to see some of the details You mention.
The first non normative load that comes into my mind is pulling logs and fire wood. For years in winter my forster family went into the forest to make the fire wood needed for the house.
And I remember one year we had to screen out younger oak trees. => leave it long, take the top and run down the hill through the snow evading the standing trees...
For sure You will like the ideas that come with this bike the 2 wheel drive Rokon.
http://www.rokon.com/index.php?p=1_11_Accessories
I'd love to take one of their front wheel drives and add it to their sidecar wheel...makes up a 3 wheel drive.
Sadly my farm's soil is way too heavy for to use their plow... Even the oxes don't get the soil broken up well enough. A high power cultivator would be needed.
You have a tank hanging on the wall. I have an old Horex tank sitting beside my lathe and for 7 years a squirrel was breeding her youngs in it. Your tank has inhabitants too?
Best wishes from the passover storms, nasdarovje.
Sven
That trailer is just too cool, SUPER! Very clever build there, you could make a career of this!!
Thanks Peter. Rokon is one of my biggest inspirations, maybe I will build something like this when I finish my Pannonia. Rokon is usable, solid and build to survive. The idea of "all nuts and bearings in the same popular size" is great.
I will use some ideas from Rokon trailer in the trailer that I'm working on.
I'd like to know how they built "one nut detachable" sidecar. I live in place that is accessible by 120 cm wide gate, so I must detach the chair and reattach it every time I ride somewhere. And when I come back. Such "fast (re)attach" would save 15 minutes every time, or more if I carry many luggage in sidecar.
This tank comes from my Pannonia and it dries. I repainted it black, cause the Pannonia was painted in awful color:
Something must be wrong with Jawa. Another one, beside mine, has to be hauled to the shop...what a shame, and I thought they would be made for European wheather and flat land.
The lesson, that they do not last high mountain range and tropical climate, I had to pay expensive myself with 3 capital engine damages in only 29.885km
Sven
Greetings Sven! Long time no interwebb...
Peter Pan - 11/30/2012 4:23 PM I broke the engine on a fishing trip and am waiting for the Husquarna 450 engine to be fixed. Sven
Now you've got my attention.. what vintage Husqvarna 450 are you talking about?
I have a 1972 myself, sure would make a big difference over the Villiers 34A I have in my Greeves now!
Don in Nipomo
Don, for sure You will be disappointed.
Its a nearly brand new Husquarna TE450 modern sport bike, of which the owner was such a sucker that he tore off both outlet valves and broke the base of the kick starter when he went down and kissed the mud...
Less then 30 hours is something I can believe due to the inexistent wear in the cylinder, oil was completly clean.
98mm diameter and 58 ?mm stroke is practically the opposit of the Jawa, but it will be watercooled, and a 4 stroker with 6 gears. I hope that will become a complete new story for the rig in our mountains. The elevation from 29 to 48 horses will become interesting. Only thing I must be beware of, is the 49th horse that connects handle bar and seat.
In fact I love oldtimers, but I learned that the modern bikes with watercooling are way more reliable then the old air cooled ones and my wife is pretty fed up with my mania to bring home old stuff.
So let's go over to a new phase of life...
Sven
What Jawa do you have? They're surely nor mountain bikes, even if produced in country, thats 2/3 of terrain are mountains 🙂 Old bikes are great but nearly none of them are suitable for daily use. I have old Ogar 200. And its engine had to be repaired every road crossing. I swapped the engine to chinese 4 stroke (in almost the same shape). And since then I had no problems with it. Swap was made without modifying the original parts, even the original paint wasn't scratched. I also attached turn lights and normal front light (55W 12V halogen instead of 15W conventional bulb), everything is detachable without trace. But Ogar is now usable, reliable and much safer, and unlike with 2-stroke, now it's possible to brake by engine, it consumes half of fuel it needed before swap.
Yesterday I finished the rig "mechanically".Only some trunk is needed. It's now coated with anticorrosion base paint and waits for color. Rides very nice. Now brother is slightly affraid of riding a rig, so today and few next days I will instruct him on empty parkplace near to his house. But I'm not affraid of him. If I didn't know it's his first rig ride, I wouldn't believe.
Yesterday a winter started after falstart a week ago (FALLstart of the winter 
). I attached a sidecar permanently and will detach it only for whiles to pass the gate to my home, until the spring.
Hello Igor,
that sounds good for Your brother. Meanwhile You have no box, just leave the car battery mounted, which You seem to use as universal shop help....
My Jawa (as solo named Wendy and as rig called Jolly Roger 2) is the 350 "bluestyle" from 2001.
2 month before I damaged, better said broke, the engine I did change to the electrical system of the police version.
What a great change! I was sure that was the best improvement in all the time beside the bleeding hose in the bottomn of the dynamo cover ( then the water that came into the dynamo each time You crossed a river would be able to evaporate and not trapped inside and over time kill the copper windings).
Light wouldn't fall down in front of the frontwheel any more.
She allways was a good starter and extremely economical. but from that moment on would start on the first kick and not over heat in trafic jams. I am sure that the Jawa would have been a good option as winter rig in my home Schleswig Holstein.
The trick with the electrical problems was vaseline or spray grease in all plug joints and on the main plug under the tank a cable tie for not to permit it to come free.
Her consume as solo was 3.3l/100km and as rig 4,2l/100km right the opposite of my 1986 MZ which sucked 10-11,5l/100km.
Sorry for today duty is calling.
Best wishes and have fun in the snow. We are in Transition time. Still the Passover storms come over the Cordillera frecuently and summer will start probably in january.
Hi, hi, just for to poke on Your cold fingers.
(Grandma's recipie from Königsberg against frozen fingers and toes was to wash them 3 times a day with Petroleum/lamp cerrosene)
And leater for the belly a piece of Königsberger Stollen with Glühwein/hot wine...
Have a nice Weihnachtsmarkt-time
Sven
