The Wheelie Bar

The eve of the 1970s North American Bike Boom was, interestingly, the heyday of "muscle" cars and "chopper" races.  So, it's no surprise that bicycles were made to evoke, in every way possible, the roaring engines and screeching tires of Daytona, Indy, LeMans and other motorized races.

The best-known of those bicycles were probably the Schwinn "Krate" series and Raleigh "Chopper".  Sometimes I think the latter name referred to what happened to bones when we attempted some of the stunts we saw on "Wide World of Sports".

Whatever our skill (or stupidity) levels, we all could do "wheelies".  We didn't need "training wheels", as we derisively called this item:

Campagnolo Adapted Japanese Design; The Public Didn't Rally Around It

In an earlier post, I said that SunTour's invention of the slant parallelogram is one of the most important innovations in the history of cycling.  Just about any derailleur made today that has even a pretense of quality has incorporated the design, which was patented in 1964.  In the early '80's, you could practically hear other derailleur makers panting with anticipation of the day that SunTour's patent would expire, in 1984.  Within a year, Shimano was using the design in its new line of Dura-Ace derailleurs for indexed shifting.  Within another three years, all of Shimano's derailleurs would share their geometries with those of the SunTour VGT and Cyclone.  By the end of the decade, the other major derailleur manufacturers of the era--Campagnolo, Huret and Simplex--would also "borrow" the design as they tried desperately to reclaim the market share Shimano gulped down.

A sad irony  is that after all of those companies adopted the slant-parallelogram, SunTour tried to create an indexed ("click shift") system to compete with the Shimano juggernaut--two decades after SunTour developed an indexed system (and a cassette freehub) that, by all accounts, worked well but for which the world wasn't ready.  Sun Tour's new indexed system, which came out in 1987, didn't work nearly as well as Shimano's because SunTour didn't develop a freewheel or cassette--or a chain--that worked properly with their new derailleurs and shift levers.  Campagnolo made the same mistake with its "Syncro" (which some of us called "Stinkro") setup, in which indexed derailleurs sent stolid Regina chains clattering across imprecisely-cut teeth of Regina freewheels and chains.  Also, its first "Syncro" system used a modified version of its traditional dropped-parallelogram derailleur, which didn't adjust the distance between the top pulley wheel and the freewheel cog--vital for indexed shifting performance--as well as Shimano's new slant-parallelogram derailleurs with sprung top and bottom pivots.

Campagnolo Gran Turismo, circa 1971.  Don't you just love those red bolts? Unfortunately, they're the best thing about the derailleur.  Well, all right:  It was good for driving in tent pegs. I know, I did it.  From Speedplay.

I suspect that one reason why Campagnolo tried, in essence, to make their traditional derailleur design work with an indexed lever (which looked at least something like other Campagnolo levers of the time) had something to do with their experience with their Rally derailleur of a decade earlier.

SunTour VGT-Luxe, circa 1973.  From Disraeligears

Before SunTour came out with their slant parallelogram rear derailleur, most wide-range gearing systems--like the ones found touring bikes--didn't shift quickly or precisely.   After SunTour's Grand Prix, Competition and V-series derailleurs entered the market--at the dawn of the North American Bike Boom--Shimano, which was a very minor player in the bicycle components market, wanted to compete.  They couldn't copy SunTour's design for another two decades, so they found ways to modify Simplex and Huret's designs.  The result was something called the "servo pantograph", in which the parallelogram dropped at least somewhat (like Simplex) and the top pivot was sprung (Huret).  The resulting derailleurs--which would become the long-armed Crane and Titlist--shifted reasonably well over wide ranges--better, at least, than the European wide-range derailleurs but not as well as SunTour's.

Shimano Crane GS, circa 1972.  From Disraeligears,

Even so, the Shimano Crane and even the Titlist were seen as "better" derailleurs than the SunTour V and V-GT because they were more expensive and, to some eyes, more attractive.  That might be the reason why Campagnolo modeled the first edition of its "Rally" touring derailleur on the long-caged version of the Crane. 

Campagnolo Rally, circa 1975

I actually used one of those early Rally derailleurs for a time.  Once it was broken in (its parallelogram pivots had bronze bushings like the "Record" series derailleurs), it shifted about as well as a Crane--for about double to triple the price.

But certain segments of the European--particularly Italian--cycling community were not happy:  Up to then, the Japanese copied (with notable exceptions like SunTour derailleurs) European designs.  The reverse wasn't supposed to happen, or so they believed. 

Some of those who were upset that Campagnolo was making a "Japanese" derailleur (or, as one unfounded rumor had it, that a Japanese company was making it for Campy) felt vindicated when Rally derailleurs snapped in two at the "neck" just below the top pivot bolt.  Some Cranes and Titlists of the same era failed in the same way.  So, the Campagnolo birthers, if you will, believed that the design of the derailleur--which was Japanese--was to blame.

The second generation of Rally derailleurs addressed the problem by beefing up the "neck."  There were very few reported failures.  Then again, not many second-generation Rally derailleurs were sold.  Some who wanted all-Campagnolo touring bikes actually went back to using the Gran Turismo derailleur, which Frank Berto very aptly dubbed "Campy's Edsel".  Others--mainly in the US, and to a lesser extent in the UK--decided that maybe it wasn't such a bad idea to equip their otherwise all-Campy bikes with a SunTour rear derailleur, which shifted much better, and lasted longer, than the GT or Rally-- at a fraction of the price.

Third-generation Rally derailleur, circa 1980

Although Campy's heart was always in racing, it didn't want to lose the high-end touring market.  So, some time around 1977, the Rally was redesigned.  Essentially, it had the same parallelogram as the Nuovo Record, but a longer cage.  Ironically, it mimicked a "hack" that many custom touring bike builders, particularly in England, devised:  They used to make long pulley cages to fit onto Campagnolo parallelograms.  In one way, it makes sense when you realize that the Nuovo Record was sturdier than almost anything else available (especially before SunTour came along) and mechanically simple:  an advantage when one is away from civilization!  Still, it didn't shift nearly as quickly or crisply as even the least-expensive SunTour derailleur, especially with bar-end shifters.

But at least it still pleased the blowhards purists.  And it would be another decade before Campagnolo "borrowed" a Japanese design again.  By then, Campy was desperate and the public was ready.

Spence Wolf grafted a home-made long cage onto this Campagnolo Record derailleur in the 1960's/

Comic Bikes

Geeky as I was, I was never much of a comic book fan, though many of my junior-high and high-school peers were.  However, they missed--by a decade or less--what many consider to be the "golden age" of animated magazines.

That period, it seems, began during the 1930's and continued until the early or mid 1960's. (Interestingly, that period is sometimes referred to as "the Golden Age of Radio".) Kids--boys, mostly--spent their allowance or money made from delivering newspapers or selling lemonade on cartoon-filled booklets that parents, teachers and other authority figures hoped the kids would "grow out of" in a hurry.

Around the same time, many a young lad saved his money for something that was much more socially acceptable--and which he "grew out of", usually without any prodding from said authority figures.

The thing typically lured a boy away from that second obsession was driver's permit.  As soon as he got it, the object of his former obsession was passed onto a younger sibling, tossed in the trash or left to rust in a basement or barn.

That object is, of course, a bicycle.  And many a boy's dream--at least here in the US--was a two-wheeler from Schwinn, which was sometimes referred to as "the Cadillac of bicycles." 

Not surprisingly, during the "golden age" of comic books, Schwinn very effectively used that medium to promote their products.  (They also used such publications as Boys' Life magazine, which every Boy Scout received.)  Not surprisingly, those magazines and comic books carried advertisements from the Chicago cycle colossus.  But more than a few had "product placements" not unlike the ones seen in movies or TV shows:  You know, where you can see--if only for a second--the Schwinn badge on the bike some character is riding.

 

Given everything I've just said, it shouldn't come as a shock to learn, as I recently did, that Schwinn issued its own comic book in 1949: the very middle of the Golden Age of comics.    Schwinn touted them as "educational", which indeed they were:  Included were segments about safe riding, locking up the bike and Alfred Letourner's speed record--accomplished, naturally, on an early Schwinn Paramount. 

Including Alfred Letourner's ride (and the bike he rode) exemplifies what I have long known about most "educational" publications:  They are teaching the consumer to buy a specific product, or to influence said consumer's parents to buy it for him or her.  And, indeed, most of what was in Schwinn's comic book--even the parts that showed the development of the bicycle during the century or so before Ignaz Schwinn started making bikes--had the purpose of showing that Schwinn bikes were at the top or end (depending on your metaphor of choice) of the evolutionary chain, in much the same way that the "history" we're taught as kids is meant to show us that all historical events were props that help to set the stage for our country's greatness--or, at least, the dominance of the group of people to whom the writers of the history belong. 

 

Still, I have to admit, I had fun looking at the Schwinn comic book.  Sure, it's schlocky, but it does offer a window into the almost-adolescent exuberance of the United States just after World War II.

What If Sanko Ruled The World?

Most of us who came of age around the time of the '70's Bike Boom believed that in the beginning, good bikes and components came from England, France, Italy and a few other European countries.  Reliable but heavy and clunky bikes were made in the US; Japanese manufacturers copied what Europeans and, sometimes, Americans did.  And, until the time of the Bike Boom, the Japanese stuff was of lesser quality.  Some of us still believed that narrative long after reality proved otherwise.

Thus, we thought that if you were a racer, super-high mileage rider or simply wanted to ride without being weighed down by your wallet, you equipped your bike with Campagnolo components, especially the Nuovo Record rear derailleur.  In our heart of hearts, we knew that SunTour derailleurs shifted better.  But if a Campy costs four times as much, it must be better, right.

So, while racers and other active riders--or rich blowhards--opted for Campagnolo, in-the-know cyclotourists, recreational riders and other types of cyclists soon learned that, whatever their gearing needs, a SunTour VGT (or, later, Cyclone) was their best bet.  Eventually, racers and those with pretentions toward being racers would realize that SunTour derailleurs--and, by extension, other top-flight Japanese components--had "caught up" with or, in some cases surpassed, their European counterparts.

The funny thing is that none of us knew that more than a decade earlier, a Japanese manufacturer made a derailleur that far surpassed anything else that was made at the time.  Legend has it that so much was spent to reseach, develop and make this derailleur that it bankrupted the company.

Just a year after Nabuo Ozaki designed the single most influential derailleur in the history of cycling--the Sun Tour Gran-Prix--a smaller Japanese company came up with a "best of" derailleur that incorporated the best design features--except for SunTour's slant parallelogram--of other derailleurs.  To be fair, whoever designed the derailleur I'm about to mention may not have known about SunTour's design, as it may not have gone into production and in those pre-Internet days, such information would not have traveled as freely or quickly.  Also, I think that even had this derailleur's designer known about SunTour, he wouldn't have incorporated its design as it was so new and radical.  He probably would have thought it best to copy, as closely as possible, European designs, as most Japanese bike and component manufacturers did at the time.

The derailleur in question was, apparently, produced for only one or two years and was never exported, at least not in any significant quantities.  Thus, to this day it remains all but unknown to cyclists outside of Japan. Even within Japan, not many were sold, as it was more expensive than the Campagnolo Record or any other derailleur.  Because of its rarity and quality, it is one of the most sought-after components by Japanese collectors, who tend to favor vintage French (and sometimes British) stuff.

• 
  

The derailleur I have been talking about is the Sankyo Procyon PV-III.  I have never seen one in person, but what I've seen in photos of it leads me to think that it was indeed of the extraordinary quality attributed to it.  The knuckles and parallelogram plates were made of nicely-finished aluminum.  Recall that at that time (1965-66), Campagnolo's top-of-the-line derailleur, the Record, was still made of chrome-plated bronze.  

The Procycon had two sprung pivots, as Simplex derailleurs had. (Only the lower pivot on the Campagnolo Record was sprung.)  This allowed, in the absence of a slant parallelogram, for the chain to ride closer to the cogs than it would with a Record.  Also aiding the shift was a clever mechanism that kept the cable stop and cable clamp in alignment, and a pulley cage with an offset pivot.

And the build quality, from what I've read and heard, has never been surpassed, not even by Campagnolo's or Mavic's derailleurs.  While SunTour derailleurs had an overall better design, they didn't have the otherworldliness, or perception thereof, that the Procyon had.  

Now here's something to consider:  What if the Procyon, rather than the Campagnolo Nuovo Record, had become the derailleur of choice in worldwide pelotons?  Would SunTour have become as influential as it did?  If SunTour derailleurs had less influence, would Shimano have copied their most salient design feature and created a successful indexed shifting system?  And what would, or wouldn't, other derailleur makers like Huret and Simplex have done?

Fantasies On Speed, Not Steroids

The other day, and the day before that, I wrote about vintage bike parts that were (and, in some cases, still are) elite, if not sublime.

Now I have to balance it out with the thoroughly ridiculous.  Also, I feel an obligation to show that not all crazy, impractical ideas are being conceived and carried out (of what?) today.

Specifically, I am going to write about a totally ridiculous shift lever.  Having been a cyclist for four decades, and having worked in bike shops, I've seen some doozies, including ones longer and wider than railroad spikes--mounted on top tubes, no less.  (Could that be a cause of the decrease in fertility?)  They are in the category of, "They don't make them like that anymore--thank Goddess!"

So is this shifter I found on eBay:

I mean, in what universe is a shifter shaped like that?  Or, for that matter, in what reality does one combine it with a speedometer.

I'll tell you what milieu I'm talking about, because I spent part of my childhood in it.  It's the decade or so--roughly from the mid-1960s until the mid- or late 1970s--when bikes were designed for boys who, from atop their banana seats and behind their "ape hanger" bars, dreamed of driving "muscle cars" on the Daytona flats.   

Said bikes were designed by like-minded boys, some of them in the bodies of 40-something men.  And the boys of that time are now the 40-, 50- and even 60-something men who still are driven (pun intended) by such fantasies.

I'll bet that someone like that will buy the shift lever/speedometer I found on eBay.  I mean, who else would?

Shifting

These days, shift levers are curved pieces of metal with cylinders at one end.  The shapes vary somewhat, and the ones attached to brake levers (e.g., Campagnolo Ergo and Shimano STI) are longer.  But, for the most part, they don't call attention to themselves. 

Probably the most elegant shifters ever made were the "teardrop" retrofriction levers Simplex made during the 1970's and '80's:

Next in my beauty contest are the Superbe Pro levers SunTour produced during the 1980's"

Some might say they look even better with the gum-rubber hoods SunTour offered for a time:

I'd probably want those hoods if I were going to install the levers on Vera, my British Racing Green Miss Mercian.

Campagnolo Record levers of that era also had a fairly understated design:

unless some bike maker decided to re-fashion them:

Now, some would argue that an Olmo of that era simply wouldn't be an Olmo without those shifters.  I wouldn't disagree, though I've never owned an Olmo.

I've never owned a Schwinn Sting-Ray, either.  That's probably a good thing, considering the shifter that came with it:

I can't help but to wonder whether it has something to do with the decline in birth rates.   Supposedly, the shifter "clicked" or "indexed".  It's hard to imagine how that was accomplished with the derailleur that came with the bike:  a Schwinn-branded ("Schwinn Approved") Huret Allvit.

In a way, though, I can understand why that shifter was used on Sting-Rays:  the bike's designer was invoking the spirit (or something) of "muscle cars" from that time.  I guess some kid could push or pull that lever and imagine himself on the track at Daytona or something.

But there's no such excuse for this lever, which was made for adult bikes:

If you think somebody cannibalized a Simplex "Prestige" derailleur and glued parts of it to the tops of these lever, you'd be right--sort of. After all, these levers were made by Simplex around the same time they were making all-plastic derailleurs.

And then there are these levers that dare not speak their name:

The "333" on the sticker means that Shimano made them, probably during the 1960's or early 1970's.  SunTour's components were sub-branded "888".  How these companies came up with those numerical designations, I don't know.

One way you can tell it's from that period is the red adjuster knobs and trim.  Both Shimano and SunTour--as well as a couple of other less well-known Japanese manufacturers--made derailleurs and other components with red trim or even small parts. That practice seems to have lasted only a few years, and no one seems to know what inspired it.  The "rising sun" of the Japanese flag, perhaps.

I wonder whether it will work with Campagnolo cassettes. ;-)





 

Memory, In This Light

Have you ever tried to describe something you owned or used in your past and, no matter how hard you try, nobody has any idea of what you're talking about?

It seems that the ones who might have owned or used it have no memory of it, and younger people can't imagine it or think you're making it up.  Or, if you're about my age, they think you're just "losing it".

That happened to me a while back.  On my way home from a ride, I stopped in a shop I'd never visited before.  I got to chatting with the owner, who showed me some parts and accessories he accumulated over the years.  They were commonplace when they came his way; now they're considered vintage.

Among those wares was a Japanese generator headlight from, probably, the 1960's.   It was shaped something like the "bullet" lamps that are becoming popular once again.  What was really interesting about it, though, was that it had two differently-sized bulbs and a switch at the top.  He explained that as you built up speed, you powered the smaller "low beam" and, when you got up to your "cruising speed", you flipped the switch to the larger "high beam" light.

That light triggered a memory from my childhood.  The old Royce-Union three-speed my grandfather bought for me about three years before I was tall enough to ride it (and, sadly, only a few months before he died) had a very similar generator headlamp.  Mine also had two lights, I explained, but the larger one was a fluorescent tube.  At slow speeds, you rode by the light of the smaller incandescent bulb, but as you got up to your "cruising altitude", if you will, you flicked the switch for the fluorescent light.

The shop's owner, who's older than I am, says he never saw such a thing and couldn't imagine it.  Still, I couldn't get it out of my mind.  So, I tried Googling all sorts of search terms, including "fluorescent bicycle light", "dual bicycle lights",  "bicycle generator light made in Japan",  "bicycle lights 1960's" and "bicycle lights 1970's", but came up empty.

I actually started to wonder whether I imagined it--or whether some shadowy operative implanted a fabricated memory into my mind to drive me crazy. (No, I'm not a conspiracy theorist; I just know that the world is against me! ;-)) Then a name started to float through my mind:  Kaddomax.  Could that have been the brand name?  I tried several permutations of the spelling, including "cadomax", "kadamax" and, finally, "Kadomax."  I hit paydirt with that last one:

Someone in Greece is selling a pristine set that includes the headlamp, generator and taillight--just as I remember them--in a box that seems only slightly shopworn.    The asking price:  $200, plus $35 for shipping from the Hellenic Republic.

I'd love to know how the seller got his/her hands on that set, and where it was kept for the past four decades.

Of course, were I to buy such a set--or even if I found one in less virginal condition--I would not use it on my daily commuter.  Today's LED lights are lighter in weight, and less complicated and finicky, than the older lights.  I know that LEDs can be made to work with generators, but if I wanted a generator for my daily rider, I'd go with a modern one, as it would be more efficient.

But if I had some restoration project, or simply wanted to put together something unique, I'd buy the Kadomax. Heck, it's tempting, just for the memories it would evoke and preserve.

50 Years Ago This Month: The Dawn Of SunTour

What is the most influential and important development in the history of the bicycle?

Some would say, well, duh, it's the invention of the bicycle. I might agree, except that it's hard to pinpoint when, exactly, the bicycle was "invented".  Is Leonardo da Vinci responsible for it?   Or, do you consider the "celerifere" the first in the line of two-wheeled vehicles we love to ride to day?  Some might say Karl von Drais de Sauerbrun, who attached a steering device to his two-wheeler, is the progenitor of our pleasures.  Then again, others would have us believe that it wasn't really a bicycle until Kirkpatrick MacMillan attached foot pedals to it.

After the invention of the bicycle, however you define it, probably the most important development--and certainly the one most influential beyond the world of cycling--is that of the pneumatic tire.  Without it, not only bicycles, but also motor vehicles, would give slower and bumpier rides than wooden- or metal-wheeled horse-drawn carriages.  And modern passenger aircraft could not take off or land.

Possibly the next-most important development is the invention of the "safety" bicycle.  It's what we (well, most of us, anyway) ride today:  two wheels the same size (or close to it), foot pedals and a front chain that drives a rear cog via a chain.  This type of bicycle replaced the high-wheeler or "penny farthing" bikes, on which the pedals and cranks were attached to the front wheel axle.  The gear ratio was, therefore, dependent on the size of the front wheel:  Common diameters were 60 and 72 inches.  On the "safety" bicycle, variable gears were possible.

Variable gears led to inventors coming up with various ways to use them, the most common of which are variable-gear internal hubs (e.g., the Sturmey-Archer three-speed hubs found on classic English bikes) and derailleurs.

About the latter:  The patent for what is, arguably, the most important innovation in derailleur design was filed fifty years ago this month in Japan, and a month later in the US.

Here we can see it advertised in the December 1964 edition of New Cycling magazine:

It's the SunTour Gran-Prix derailleur, the progenitor of every single derailleur with even the slightest pretense of quality made during the past few decades.


This brainchild of Nobuo Ozaki, SunTour's chief engineer at the time, the SunTour Gran-Prix introduced the "slant parallelogram" design to the world.  The derailleur's main parallelogram is more or less parallel to the chainstay, in contrast to those of Campagnolo and Simplex derailleurs, which dropped straight down from the frame mount and were almost perpendicular to the ground--or those of Huret derailleurs, which consisted of flat steel plates that pivoted on the mounting plate.

Such a difference is not merely stylistic:  It allowed the top pulley of the Grand-Prix to run as close to the smallest cog as it did to the largest, or any in between.  Shifting thus became easier and more precise, especially on wide-range touring gears.  People were amazed at the difference when they replaced their malfunctioning or broken Huret Luxes,  Campagnolo Gran Turismos or Simplex Prestiges with something from SunTour.  I know I was.

Without a way of keeping a constant distance between the derailleur pulley and the rear cogs, it's all but impossible to make any sort of indexed derailleur system work reliably.  Ironically, this fact would lead  Shimano and Campagnolo (and, later, SRAM) to claim supremacy over the market SunTour would dominate from the mid-1970's until the mid-1980s--and, ultimately, to SunTour's demise.

Practically the second SunTour's patent expired in 1984, Campy and Shimano (and Sachs-Huret, which would become part of SRAM) seized upon it.  The following year, Shimano introduced SIS, the first commercially successful indexed derailleur shifting system.  The rear derailleur from that system combined SunTour's slant parallelogram with the spring-loaded top pivot Shimano (as well as Simplex) had already been using in their derailleurs.

Notice that I said SIS was the first commercially-successful indexed derailleur system.  It wasn't the first indexed system:  The idea was tried as far back as the 1930's (the "Funiculo" derailleur on Jacques Schulz bicycles), and in 1969 SunTour introduced an indexed system that, by all accounts, worked well. 

Had SunTour waited a couple more years to market that system, they might have dominated the bicycle components industry even more they did in the 1970s, and they still might be in business today.  However, the "Honor" and GT derailleurs-- refinements of the Grand-Prix--and the "V" series were introduced just as the '70's Bike Boom was starting in North America.  New cyclists (like yours truly) in the New World had no previous brand loyalty, if you will, to any of the established European derailleur makers and were more willing to try something that looked (and, more important, worked) differently.

Interestingly, this led to a reversal of an old dynamic:  A few years later, European cyclists (some, anyway) would take the lead of their American counterparts and start using SunTour (and, later, Shimano) derailleurs and other parts. 

Anyway...After Shimano introduced their indexed system in 1985, other companies--including SunTour and Campagnolo-- panicked and introduced their own systems. Some of us referred to Campy's "Syncros" system as "Stinkros".  SunTour's system shifted a little better, but not as well as Shimano's, which consisted of a more closely-integrated set of components.  Essentially, Shimano designed a whole new system, while SunTour and Campagnolo simply created new indexed shift levers that were supposed to work with derailleurs and freewheels those companies were already making.

What made matters worse was that bike manufacturers, like Schwinn, equipped some of their models with SunTour's indexed shifters but used them with freewheels, chains and cables--some of which weren't even made by SunTour--they already had on hand.  It almost goes without saying that the results ranged from underwhelming to disastrous.

(Also, the fact that Schwinn's reputation was already slipping didn't help to bolster confidence in the components they used on their bikes.  That's my opinion, anyway.)

SunTour finally redesigned their indexed systems, but it was too late.  The company managed to hang on until 1995.  By then, nearly all bikes of any quality had Shimano derailleurs--which had the same geometry as the SunTour derailleurs Nobuo Ozaki created three decades earlier!

(He was, apparently,  much better at industrial design and engineering than anyone in the company was at translating.  One of their early manuals, useful as it is, tells us "How To Use Honor Rightly".)

A Franken-Barracuda

Spend enough time in New York City, and you're sure to see some "Frankenbikes".  Such machines have been modified to serve some purpose for which they weren't built.  So, an old racer becomes someone's "pedal taxi" by changing the dropped bars and clipless pedals to flat versions of both, wider tires and, in some cases, clip-on fenders and lights.  Sometimes such bikes, which could have originally had anywhere from 10 to 20 speeds, are converted to single-speed or fixed-gear use.

Old mountain bikes might undergo similar treatment.  The difference is that these bikes' tires are often swapped for narrower ones or slicks (rather than the knobbier treads found on mountain bikes).  

Other "Frankenbikes" include ones in which one frame is stacked on top of the other, or "parts bin specials", in which a bike is assembled, basically, from whatever is lying around.

Today I spotted an interesting version of the latter kind of bike:

I wish I could have gotten a better angle on it.  At first glance, it didn't seem so unusual.  However, in passing it, I noticed this:

It's not the first time I've seen side-pull caliper brakes on a bike made, as most mountain bikes were until a few years ago, for cantilever or V-brakes.  Still, they look pretty strange (a least to me) on a front fork with suspension.  It was then that I realized that 700 C (road diameter) wheels were substituted for the original 26" mountain bike wheels.  The brake would not have been long enough to reach the rim of the smaller-diameter mountain bike wheel:

The same thing was done on the rear.  As I looked closer, I saw that the crankset had also been changed. 

What's interesting is that the crankset and brakes more than likely came from the same bike, most likely a mid-to-upper level Japanese road bike of the late 1970's or early 1980's.  The brakes were Gran Compes, which were a Japanese near-copy of Campagnolo's Record brakes.  And the crankset was forged by Sakae Ringyo, known in bike circles as SR.  

That they ended up on what appears to be a Barracuda A2B from 1995 or thereabouts is a story I'd like to follow.  Moreover, they ended up on that bike with a current Quando wheelset, yet the rear derailleur is a Shimano of later vintage than the bike.

Barracuda bikes had a meteoric "career", if you will. Two lifelong friends from Grand Rapids, MI founded the brand in 1992 in the mountain biking hotbed of Durango, CO.  After the business and its race team were well-established, manufacturing was moved to Taiwan, as was typical at that time.

The bikes had a loyal "cult" following, like many iconic mountain bike and component makers of the 1990's.  But those companies--often started, like Barracuda, by a couple of guys who liked to ride or a twenty-something in California whose father had a lathe and a drill press--often were run on unsound business practices.  In an odd way, this story parallels the dot-com boom and bust that followed it by a few years.  

Also, some smaller mountain bike and component makers of that time were done in by warranty claims or, in a few cases, litigation when a product was faulty.   It only took one or a few such cases to sink some of the smaller manufacturers, especially the ones that were operating out of someone's father's garage.

Late in 1995, in spite of positive reviews of their bikes, Barracuda was hemorrhaging money.  At the end of that year, Ross Bicycles bought the company. While they didn't change that year's models considerably, the ones that rolled off the assembly lines in the brand's later years bore almost no resemblance to the ones that had become virtual legends among a small group of mountain bikers.  By the end of the decade, Barracuda production had stopped.

Ironically, Ross--which was headquartered in Rockaway Beach, Queens--actually made a bike called the "Barracuda" during the 1960's and 1970's.  It was a small-wheeled bike with a stick shifter on the frame, similar in many ways to the Raleigh "Chopper" or the Schwinn "Krate" series.  So, one might say that the "Barracuda" I saw today was a Frankenbike even before anybody altered it!