Showing posts with label aero bars. Show all posts
Showing posts with label aero bars. Show all posts

30 March 2016

Assuming A Postition: Scott DH And Cinelli Spinaci

Today, the Union Cycliste Internationale (UCI) is one of those organizations almost nobody loves.  There are plenty of good reasons for that:  The organization is often accused of looking the other way when riders are doping--and taking bribes to do so, and threatening lawsuits against those who accuse it of wrongdoing.  It was, essentially, duped (or so it claims) into violating a country's sovereignty.  And the UCI makes and enforces all sorts of rules that defy logic or reason.

However, there was a time--believe it or not--when the UCI actually made rules that made sense.  One of those occasions came in 1997, when it banned aerobar (a.k.a. "tribar") extensions from competition.



Scott DH bar, circa 1988.  Don't you just love that neon yellow? ;-?
 


You have no doubt seen, and possibly ridden, them.  Originally, they were designed and ridden by triathletes.  They caught on with other racers and wannabes after Greg LeMond rode the final time trial stage of the 1989 Tour de France on a bike equipped with Scott DH bars.  He began that day (23 July)'s stage 50 seconds behind race leader Laurent Fignon.  Rarely does any cyclist--barring a crash or mishap to another--make up so much time on a single stage, let alone the final one, which is usually an individual time trial and is, as often as not, ceremonial rather than consequential.

Greg LeMond on his time trial bike--with Scott DH clip-on aero bars--in the 1989 Tour de France.


When it was over, LeMond--whose 1986 Tour victory was the first by an American--left Fignon in second place, 8 seconds behind in the overall classifications.  That was, and remains, the smallest margin of victory by any overall Tour winner. 

Until then, the jury was out on aerobars.  But a lot of cyclists looked at that result--an 8 second lead over a three-week-long race!--and thought that if the aerobars weren't the reason, then maybe, just maybe...

Sales of Scott DHs took off.   The "forward" position mimicked the "tuck" of a downhill skier, which is where the "DH" came from.  (Before they started making aerobars, Scott was a ski-equipment company.)  At that time, a lot of road bikers were taking up mountain biking, some in the form that would later come to be known as "downhill".  That, I believe, accounted for at least some of the popularity of Scott DHs with wannabes.  And, at that time, some cyclists who'd started off as mountain riders were "discovering" road cycling.  And those triathloners who hadn't adopted aerobars up to that time couldn't wait to get them.


The popularity of those bars, naturally, spawned imitators and tweaks.  Some, like Profile, were made by companies that had never before made bike components.  And most of the handlebar manufacturers of that time got in on the action.


Cinelli Spinaci, circa 1990.


One of the best-known of that new breed of bars was the Cinelli Spinaci.  Its forward reach wasn't quite as far as that of the DH.  So, while it wasn't quite as aerodynamic as the DH, it allowed the rider to assume a position more aerodynamic than the normal road-riding position for longer periods of time.   Also, the Spinaci could be set up in a greater variety of positions.  That latter quality also was one of its downfalls.

The ideal position, or at least the one recommended by Cinelli, set the clamps at 45 degrees and the bars parallel to the ground.  But some riders tilted their Spinacis to the "wheel licker" position in the mistaken belief that being in a below-horizontal position made you more aerodynamic.  Others rode them with the bars tilted so that the end were almost in a direct line with the rider's face.  That position was about as aerodynamic as a boulder.

How do I know so much about the Spinaci? All right, I'll make a confession that might cause some of you purists to lose respect for me:  I used it.  I like to think I was young enough to consider it now as a youthful folly.  Although I knew that the bars would wreak havoc with the aesthetics of my Colnago, I rationalized installing the Spinaci because, well, it was Italian--because it was Cinelli, the same brand as the handlebars to which I was clamping it.

I didn't ride them for very long, though.  As I have  mentioned, there was no benefit in tilting them upward or downward.  And even though riding them in the horizontal position was relatively comfortable (especially with the arm rests), I didn't spend much time riding that way.  So, after acquiring them in the spring, I had little trouble selling them in the summer, as they were at the peak of their popularity.

The biggest drawback, though of Spinacis, DHs or any other aerobar lies in using them while riding them in a peloton or any other kind of group or pack.  When you're riding on the extensions, your hands are nowhere near your brake levers.  On traditional road bars, if you're riding in the drops, you can move your hands to the levers relatively quickly, usually enough to avoid a crash or lessen its impact.  The real danger, though, is not just in one rider using it.  As the UCI folk realized, in one of their rare moments of anything resembling clarity or magmamnity, if a hundred riders are using them and one of them goes down, or there is any other emergency, the result could be, essentially, a race that ends by attrition.

Now, having said all of that, I am not trying to dismiss aerobars.  I never cared for the aesthetic, but I can understand why some riders, especially time trialists, would like them.  The UCI, in one of its increasingly-rare instances of clear thinking, realized that there are some situations in which those bars shouldn't be used, and banned them for that reason.
 

03 April 2014

Is The Old New? Or Is The New Old?

The book of Ecclesiastes tells us "there is nothing new under the sun".

That is no doubt true of the bicycle world, especially when it comes to "innovations".

I many not be very old. (At least, that's what I tell myself.) But when younger cyclists during the '80's treated newfangled aluminum frames with awe, as their counterparts would for titanium and carbon fiber frames a decade later, I could say "Been there, done that!"

When I was first becoming an active cyclist--and learning about different kinds of bikes--during the 1970's, frames were being made from all of those materials. Now, they weren't mass market:  In constant dollars, they were far more expensive, and even more exotic, than the ones made today.  !"

But aluminum frames were of the "screwed and glued" variety made by ALAN in Italy and, later, by Vitus in France.  Carbon fiber frames were similarly constructed:  the tubes were bolted and bonded into aluminum lugs.  And titanium frames, like those from Speedwell in England, were constructed in much the same manner as fillet-brazed steel frames.

Speedwell's construction, similar to those employed by rival titanium bike-maker Teledyne, were meticulous and sound.  However, the metal used was almost pure titanuium, which resulted in a bike that was neither stiff nor strudy.  No one realized that titanium had to be alloyed.

As for aluminum, everyone involved in building bikes knew enough not to use the metal in its pure form, mainly becuse aluminum alloy components had been in use for decades.  What they didn't realize, until the Klein bicycle was designed, was that they had to increase the diameter of the tubes to get anything like the stiffness of a good steel bike.

And there was even more to learn about using carbon fiber, and the molding technologies used now were two decades away.

Although I had witnessed earlier incarnations of those kinds of bikes during my youth, I didn't realize then that aluminum and titanium frames were built during the 1890's.  They weren't as widely-used as those of iron or steel--or even wood.  But it's still instructive to note that the technologies, in their rudimentary forms, existed then.

It was also interesting to find out--as I did, just recently--that two other "innovations" associated with the last quarter-century or so actually have as long a history as that of frames made from "exotic" materials.



Believe it or not, there were patents for suspension systems and aerodynamic bars in the 1880's and 1890's.  Any attempt to cushion the ride was bound to get a reception from somebody, as the high-wheelers and "boneshakers" of the time gave even harsher rides than modern time-trial bikes with the most extreme geometries.  Also, most roads of the time were unpaved.




But it seems that less effort was put into developing suspension systems once Dr. Dunlop invented the pneumatic tire.  It not only made bikes faster than they were before, it also gave a "floating on air" sensation, as at least one rider reported.  



As for aero bars:  Well, this pair was developed more for comfort:  It gave riders an extra hand position as well as a place to rest their arms.  A few riders have told me they rode aero bars for that reason alone, and it was one of the benefits of the "cowhorn" bars I rode on my old (Italian) Bianchi track bike.



There was another reason why aerodynamic bars were developed.  To be precise, there's a reason why two men in particular--brothers--came up with their version of them.





You might have guessed that the fraternal pair were Orville and Wilbur Wright.  Yes, they used their bars in attempts to measure air drag and wind resistance, two very important considerations in their development of their gossamer-winged wonder.

All of the above illustrations came from Roads Were Not Built for Cars.

28 February 2013

The Wooden '90's

Until the 1950's, track racers commonly used wooden rims.  They are still made today by Cherchi Ghisallo in Italy.  However, they are not allowed in races because, while they are light and give a comfortable ride, they can shatter upon impact and release a cloud of sharp, jagged projectiles.  

There are a few enthusiasts who will ride nothing but wooden rims.  Those cyclists feel that the increased cost and maintenance, as well as the fragility, of those rims is worth the improved comfort and performance.  They can only be ridden with tubular (sew-up) tires and without rim brakes.

What even many of those wooden-rim enthusiasts don't realize is that at the turn from the 19th to the 20th Centuries, entire bicycles were made of wood. Well, the frames and the parts that didn't have bearings were, anyway.  I understand that some of those bikes even had wooden saddles!

Now Ojira Yoshima, a student in the Craft & Industrial Design department of Musashino Art University in Tokyo, has revived and updated the concept:





I find it interesting that his frame design is at least somewhat similar to that of Softride bikes of the 1990's. He designed his wheels like the Tri-Spoke wheels made by Spinergy, Zipp and other companies during that same period. The aerobars could also have come from the Indie Rock era.

I wonder what the ride is like.