Editor's Note:
The year was 1975 and suspension travel was just at the start of the long travel
revolution. In 1974, the longest travel any production bike had was about four
inches. Yamaha came out with their monoshock design ( a single shock under the
saddle ) and several other manufacturers started moving shocks forward and
angling them all over the place. A word about Vic
Krause, the man who wrote this piece. Vic (at that time) owned a dealership in
Chicago and was The Maico Man in the Midwest. He was also a good friend and even
wrote the legendary Mister Know-It-All column for me in Modern Cycle and Dirt
Bike. So, sit back and enjoy
the crusty writing style and learn some interesting facts about the bike that
Maico never built ... but certainly should have!
 With the saddle, rear fender and side panels removed, you can get a
clean look at the fabrication and construction techniques involved. |
It was a dreary,
uneventful winter afternoon on the outskirts of Chicago, as I sat in my shop
pondering the meaning of nine straight days in mid-February without seeing the
sun. It seemed as if Mother Nature had taken a two-week vacation and left
Illinois to fend for itself. I was desperately trying
to find a convenient dealer trade show I could attend, but nothing was happening
in either Jamaica, or Acapulco. Just when I thought the
hinges on the showroom door might begin to rust closed, a van pulled into the
parking lot and into the showroom walked my first customer of the month. He was
wearing an army jacket and some old fatigues.  Swingarm is heavily gusseted for extra strength. The Kramer kit called
for square tubing, but the owner/builder changed it to the same tubing
used in the rest of the Maico chassis. |
I promptly hopped to my
feet and forced a cheerful salutation. He mumbled a reply that sounded like
"you too" and started browsing around. I began doubting his candidacy
for the "first customer of the month" award. Eventually, he sauntered
up to the counter. Expectantly, I awaited his order. "A pair of boots or
leathers today?" I asked optimistically. "No thanks man,"
he replied. "Just give me a twin air filter for my mono-shock". Enraged, I threw him out
of the shop and told him to go to Bob Nevin's Yamaha down the street for his
monoshock stuff. Everyone around here knows that we are into the European bikes
and wage war every Sunday against the imports from Nipponland. This stranger
just needed a little educating.  Air box restriction posed no problem for the 250, but on the open
class bike might be a bit restrictive. |
I no sooner resumed my
position, seated below the magnificent Barstow-to-Vegas Horny Owl trophy, when
this character reentered the showroom protesting that he did not own a Yamaha. My patience was at an end,
and just before I was about to eject him permanently, my wife arrived with
lunch. As I relented to my steaming bowl of chicken soup, this fellow began
explaining that he owned a mono-shock-style Maico; in fact, two of them-a 250
and a 400. As I listened to this
madness, it occurred to me that this was the sixth kook that had come in this
week; I made a note to look for a better shop location. Surely this broken man
must have been captured during the war and tortured until his mind snapped. A monoshock Maico, indeed!  Stock rear shock mounts were used as support for the top tubes on the
swingarm, making for a genuinely strong structure. |
I slurped down the last
spoonful of chicken soup and decided to comfort the poor lost soul. Before I
could calm him down, he darted out to his van and reappeared with a photograph. I gasped audibly, when he
showed it to me. My irritation immediately changed to fascination. Sure enough,
it was a Maico with a monoshock suspension. However, it sported two
Bilstein gas shocks, side-by-side in a monoshock configuration. Before you could say
"Kalevi Vehkonen," I bombarded him with a thousand and one questions.
The chap's name was Ed Remis, and he had just been discharged from the Army in
December. He had served 25 months stationed in Offenbach, West Germany, as a
communication electronics technician.  Twin-Air foam filter is held in place by simple rubber bands. Small
area under the saddle restricts the size that can be used. |
His home was West Seneca,
New York, but he was in Chicago attending the American Motorcycle Mechanics
School, intending to make a career of bikes. He built and raced the
monoshock-action Maicos in Germany, and they were shipped over to the states
after his discharge. This was too good to be
true. A lousy, dismal, overcast, crummy day and in walks this Ed Remis,having
just spent over two years living a few hundred kilometers from the Maico
factory.  Support tubes apply proper stress angularity to the frame and swingarm.
Extra tubing and gusseting added 3.3 pounds to the bike. |
I used every bit of
leverage at my disposal: two six-packs of Schlitz and the promise of 9 percent
parts discount; to try and persuade Ed to journey back to New York and return
with one of these rare Maicos so we could photograph, test, and add another
chapter to the book of unusual suspension systems. Ed agreed. As I walked Ed
to the parking lot, I turned green with terminal envy. His Sano van sat there-a
bright red with yellow lettering with the German words "Weltmeister
Rennmachinen" translating to "World Master Race Machine," and the
name Maico in two-foot letters above. First class! I didn't sleep a wink for
two weeks thinking that the ships transporting the bikes might have sunk, or a
dock worker might have dropped the crate into the harbor, et cetera, et cetera.  Not much chance of bending this swingarm. |
However, Ed arrived with a
250 Maico right on schedule. As he nervously watched, we stripped the bike down
to essentials to study the layout of this unique system. The design is far less
complicated than you would initially assume. The bridge work on the
swingarm is not elaborate-just short struts for the lower shock mount. A portion
of the original lower shock mount on the swing arm was used as gussetting in the
new configuration. The frame was in a forward mount model before Ed modified it.  Top shock mounts are not in the way when riding. Mounts ride on bronze
bushings. |
The steel tubing used was
the same gauge, diameter, and composition as the rest of the frame. Additional
weight of the swing arm is about 1 ? kilograms-3.3 pounds; however, the weight
does not appreciably raise the center of gravity. The shocks used were 11.9
inch Bilsteins and the best spring rate was a 80/125 progressive. Girling size
springs are used to minimize the clearance problems. The only complexity in the
entire system is the air box. The majority of space occupied by the shock occurs
where the air usually comes in. This necessitated a complex set of bends to
clear the shocks and still reside under the seat, and not get in the way of the
rear wheel under full compression. The air box is a work of
art. It clears everything and provides for an adequate size twin air filter made
especially for the air box, which is held in place by a rubber strap. Air is
transferred through the bottom of the air box in a square duct. When the shocks
bottom out, the line of thrust runs straight through the backbone of
the frame directly to the steering head. With this setup, a
strengthening strap is welded around the steering head. |
It then passes through a
rubber coupling boot, a joint at the splashplate, and then a second rubber boot
to the carb inlet mouth. The splashplate keeps debris off the engine. The air
boot joint at the splashplate could not have been eliminated, but it does lend
rigidity to the air induction system. How Ed Remis obtained the
design for this system, is a trip in itself. This geometry for the Maico was
conceived by a man well respected in Germany as a top tuner and builder-Mr.
Adolph Kramer. The Kramer Maico has been
on the European scene for a year or more in top national competition. One
afternoon, Ed took a ride down to Volgenbach, south of Frankfurt, to the home of
old man Kramer to obtain the necessary components to convert his Maico to the
Kramer design.
Twin Bilsteins run
right under the air box. They run virtually dirt-free with the splash
guard right in front of them. Springs are 80/125 pound Girlings. |
A huge German Shepherd
eyed him as he approached the iron gate of the Kramer house. Hearing the dog
snarl, Kramer came out of his workshop and chained the dog up to the gun turret
of a partially restored Panzer tank that rests in the front yard. The dog's name
was Bing-what else?  Up-swept tube
on the chain side had to be notched out to allow for proper chain
clearance. If done correctly, it won't weaken the tube. |
They retired to his
Work-shop, each with a bottle or two of Hiedelhiem Beer. On the back of a dirty
placement advertising Kaiserslauten Aisle, Kramer roughly scrawled out technical
specifications for making the conversion. He then gave Remis a kit
consisting of the Bilstein stiocks, special alloy, an airbox, air boots and
connectors, a special twin air filter, and the side panel number plates. Ed gave
Kramer 440 marks (200 U.S. dollars), and then they proceeded to down another
four beers apiece. Air box is
hand-built by Kramer; work is sano. |
Mrs. Kramer appeared,
chewed out the old man for not fixing the family VW and threatened Remis with a
spot reserved for intruders in her new microwave oven. Ed grabbed his goodies and
split with a belch. For 4,500 marks, Kramer
will take a brand new machine and convert it for you that night-getting there
and back is the problem. Ed made a few improvements
on the Kramer design. The original specifications called out for square mild
steel tubing. Weight was saved by using Maico frame tubing and strength was also
assured. The upright struts for the lower shock were also canted slightly
backward to provide a more direct load to the shocks under full compression. Instead of the angle iron
for the top mount, Ed opted to use round stock and put bronze bushings on the
end for the shock eyes. The package is very clean looking. That splashplate was
also another one of Ed's innovations. The rear wheel travel is
about 6 ? inches-pretty close to what you get with forward mounted shocks. Seat
height is the same. The Bilsteins are mounted right side up, so dirt doesn't get
a direct shot at the seals. Riding the Kramer Maico is
really neat. The Bilstein shocks have very good damping characteristics and are
probably the best proven gas shocks on the market. Coupling them with
Progressive springs in the monoshock configuration, yields a ride that is gentle
in the small stutter bumps and firm over hard impact, with the smoothest
transition we have experienced in between. There is no tendency to
buck up on bumpy downhill sections-a characteristic other mono-systems have
exhibited. The center of gravity feels unchanged, yet one can still feel the
additional unsprung weight of the swing arm. Muddy conditions, here in
the Midwest (monsoon season), prevented a really good workout of the machine on
dry terrain. However, if you race around Illinois, or go up around West Seneca,
New York, Ed will probably give you a good first-hand exhibition. P.S. Dear Ed: Your twin air filter is
still on backorder. |