Suspension Of Disbelief

I've never owned a full-suspension bike.  My Jamis Dakota and Bontrager Race Lite mountain bikes had telescoping front forks, but no suspension built into the frame.  Perhaps if I had kept with mountain biking longer than I did (I stopped about 15 years ago), I might have such a setup now.

These days, my suspension consists of the sprung saddle on my Fuji commuter/beater--and my joints.

Folks like Jan Heine will tell you that you don't need suspension if you ride the right tires.  He's right:

Jan, We Want To See You Back On Your Bike--Real Soon!

Talking about another person's misfortune is always difficult, especially at this time of year.  It's especially difficult when that person has provided us with companionship, knowledge or adds pure-and-simple joy to something we already love.

Jan Heine is one such person.  Even people who will never become randonneurs or randonneuses, or have no interest in classic touring and trekking bikes, enjoy Bicycle Quarterly, in which he shares his experiences of rides and equipment, illustrated with some wonderful photographs.  He has written and edited books about bikes and riding, all of which are as interesting and informative as they are attractive on a coffee table.

His most recent adventure, in Asia, ended prematurely during his descent of Hehuanshan Pass, the highest road in Southeast Asia.  A car travelling in the opposite direction turned left, in front of him--too quickly for him to steer out of a crash. 

He writes, "I was lucky to escape without life-changing injuries."  Still, "the impact was hard enough to break my shoulder, my arm, one or two vertebrae, and a few ribs."

Ouch!

Here's to wishing Jan a speedy recovery ... and that he rides again soon.  After all, we want to read more about his adventures and the bikes he rides, don't we?

"The Retrogrouch" posted a nice "get well" message to him yesterday!
 

Mature? Not Yet: Disc Brakes On Bicycles

In the mid-1970s, my high school acquired its first computer.  The father of one of my classmates, who worked in a nearby military base, in one of those jobs he couldn’t talk about, negotiated the purchase.  For $6000, my alma mater got a used machine, about half the size of a classroom—and with about half of the capacity of devices kids carry in their backpacks nowadays.

When I graduated the following year, one of my relatives gave me a new Texas Instruments Model 101 digital wristwatch.  With its red LED display and sleek goldtone band, it seemed like the epitome of elegance and slick high-tech, all rolled up into one.  No one else I knew had such a timepiece:  For the one and only time in my high-school years, I was the coolest kid in the class.  At least, that’s how I felt.

Neither the computer nor my watch made it past my sophomore year of college.  The big box (“It’s just an oversized, overpriced file cabinet!” one parent exclaimed upon learning what it cost) assigned classes like “Sports Heroes” to honors students who signed up for the Shakespeare seminar.  (I know.  I was one of those students.) And that was the least of the computer’s malfunctions. Worst of all, nobody seemed to know how to fix them.

And nobody seemed to know how to fix my watch.  One shop claimed that displays of numbers that had nothing to do with the time of day were a result of “water damage” –only moments after I took that watch out of its box.  (I have since learned that technicians and reps say “water damage” when your electronic device is acting up or not working and  they can’t figure out why.)

Less than a decade after I graduated high school, the Yankees were giving away digital watches (with the team’s logo, of course) as promotional items on Fan Appreciation Day. My graduation gift, in contrast, sold for more (in non-inflation adjusted dollars) than most smartphones or laptops cost today.  And the watches the Yankees gave away were more reliable (water resistant to 100 meters, and shock resistant) than the one I got on Graduation Day.   

I was thinking about the computer and watch as I read an article in the most recent Bicycle Quarterly.

In “Are Disc Brakes Mature Technology? “, Jan Heine recounts his and other BQ editors’ experiences with both mechanical and hydraulic disc brakes on road, mountain and city bikes.  While the brakes on one bike offered the power and modulation of good caliper brakes, their performance was hampered by their incompatibility with the levers that came on the bike.  The brakes on the other bike were not as good as road calipers and, worse, there were a couple of potentially serious failures. 

Heine seems to think that disc brakes have potential, but there are issues that need to be worked out.  Braking power is still determined mainly by the size of the disc.  A larger disc is heavier and could necessitate larger forks—both of which are anathema to racers and other performance-oriented cyclists.  More important, though, is that while larger discs offer more power, they seem to offer less modulation.  From what Heine and others say, it seems that larger rotors give the brakes the “all or nothing” feel that V-brakes (at least the ones I’ve used) always seem to have.

Avid BB7 disc brake on Look X85 cyclo-cross bike

The flip-side is, of course, that smaller rotors offer less power.  And, if there isn’t enough power, whatever modulation the brakes offer is all but irrelevant.

Another problem, as Heine points out, is that on disc brakes, the pad grabs the disc on the rear.  On a front fork, that means the wheel is pulled away from the dropout (or fork end).  When you’re barreling down a hill—or sluicing through traffic—few things are more dangerous than a front wheel popping out of a fork. 

Most modern quick release levers, Heine says, aren’t secure enough for bikes with powerful disc brakes.   Through-axles, like the ones found on downhill bikes, might be a solution.  But even with them, the fork blades on most non-suspension (telescoping) forks wouldn’t be stiff enough to counter the forces the brakes would put on them.  So, Heine says, a dedicated suspension fork might be the best kind to use with disc brakes.

 (In contrast, rim brakes pull the wheel slightly upward, into the dropout.  And their forces are concentrated in or near the stiffest and strongest part of the fork:  the crown.  That is the reason why properly-installed wheels don’t fall out of forks equipped with rim brakes or no brakes.)

I myself don’t plan to start using disc brakes any time soon:  I have never had trouble getting the braking power and modulation I need from rim brakes, as long as I use good cables and pads and keep everything properly adjusted.  Plus, there is something to be said for the simplicity, not to mention the lighter weight, of such brakes.  So, I hope that disc brakes don’t become the only option on new bikes or that component manufacturers stop making rim brakes and parts.

On the other hand, I am not against some bikes coming with disc brakes, or for such brakes to be offered on bikes where they might make sense.  Most of all, I hope they don’t become a de facto standard—or the only option—before they are a “mature” technology.  At least, when my digital watch failed, I still had the mechanical watch another relative gave me for a birthday—my 12^th or 13^th, if I remember correctly.  And plenty of others were available. 

A Holy Text From The Patron Saint

Look at the picture, but don't look at the little box in the lower left hand corner.  (Yeah, right!)  This photo is the cover of a magazine. What kind of magazine? (Remember, you're not supposed to look at the box! ;-))

The same magazine featured this on the cover of another issue:

Lest you think they were concerned only with the French countryside, at least as a cyclist might experience it, take a look at this cover.

OK, so it's from 1970.  I think even Kirkus Reviews had a psychedelic edition around then.  Paul de Vivie might not have approved, but they can be forgiven.

Some of you may know that Le Cycliste, which was published from 1887 until 1973, was founded by someone who wrote under the name of "Velocio."  What you may not have known is that he was none other than Paul de Vivie, also known as "the patron saint of cycling."

If he isn't so recognized by Rome or anyone else, he should be known as the progenitor of a genre of cycling and the godfather, as it were, of a development in bicycle technology that most of us take for granted but wasn't allowed in the Tour de France during his lifetime.

That piece of machinery is, of course, the derailleur.  Whether or not he invented it, or even came up with the idea for it, is disputed.  What is generally beyond doubt is that he did more to make it a part of nearly all high-mileage (and some not-so-high mileage) cyclists' steeds. 

If there is any other person who did as much to popularize the derailleur--as well as other pieces of equipment that are included in every cyclotourist's (and racer's) kit--it's someone whose drawings regularly graced the magazine's pages.

You guessed:  Daniel Rebour.

Now to the kind of riding Velocio inspired, through his writing as well as his own riding:  It's what you all know as randonneuring.  And, of course, there are variations on it, such as the Audax and Gran Fondo.

Now, of course, when he was doing those 800-kilometer rides in five days through the mountains, Velocio did not have to stop at any check points or get a booklet stamped. However, in every other way, his rides are prototypes of randonnees and audax rides:  They were not races, but he always attempted (and usually succeeded) in covering a certain number of kilometers, to a particular destination and back, with as few and infrequent rest stops as possible.

He was not, as some of his critics charged, "hypnotized by speed"or "intoxicated by distance".  Rather, he was enamored of the ways in which such long hours of riding opened his senses to details no one could notice from a car or train (or plane).  A passage Dr. Clifford Graves quotes in an early issue of Bicycling! magazine is evidence of that.

Velocio/de Vivie (With a name like that, why did he need a nom de plume?) died in 1930.  The magazine continued for more than four decades after.  I haven't been able to find out why it ceased publication.  Perhaps the reason is that the number of serious randonneurs and cyclotourists declined in France, as it did in the rest of Europe, after the devastation of World War II was replaced, rebuilt or simply abandoned.  About a decade or so after the war, relatively large numbers of people could afford automobiles and drive them on the newly-created autoroutes.

Now, with  a resurgent bicycle touring community in the Old World as well as in America, Le Cycliste would probably do well--especially given that cyclists tend to appreciate tasteful, crafted work as well as nature.  Le Cycliste combined them beautifully. Thankfully, a current cycle publication seems to be doing something very similar:  Jan Heine's Bicycle Quarterly.