Tubes--And No Tubulars

 Tubeless tires have been one of the most-ballyhooed developments in cycling during the past few years.  I have not used any myself, but I can see the appeal for certain kinds of riding, particularly off-road:  Tires ridden at low pressures are more prone to "pinch" flats than to punctures.  

The debate over whether tubeless tires will displace their more traditional counterparts reminds me of the argument I heard when I first became a dedicated cyclist:  tubulars vs. clinchers.

My first "serious" bike, a Peugeot PX-10, came with tubular tires.  Their casings wrapped around the tube and were sewn together (hence the nickname, "sew-ups).  They were then attached with a cement with the consistency of applesauce (until it dried) to a rim with a crescent-shaped surface.

The fully-enclosed tube made for a more buoyant (not for nothing do the French call these tires "pneus boyeaux") and lively ride.  They also were lighter than any clinchers available at the time, which accentuated their performance advantage over "clinchers," the tires 99 percent of us ride.

Clincher (top) and tubular tire.

Tubed (left) and tubeless clincher tires

Getting a flat on any tire is not fun, but fixing one on a tubular is an ordeal.  We usually carried a spare with us and, if we flatted, we changed the tire, letting the cement dry to about the consistency of bubble gum.  Then we'd cross our fingers for the ride home. Professional racing teams are trailed by cars, which usually carried spare wheels with tires glued solidly onto them.

That is why, for my first tour-- which I did on the PX-10--I had a set of clincher wheels built.  In those days, some riders toured (with loaded panniers!) on tubulars, but I was not going to do any such thing, especially when I ventured into the countryside of a foreign land.  Those wheels--my first custom-built set--and tires, together, weighed about two kilograms (a pound and a quarter) more than the tubulars, even though they were among the lightest of their kind available.  The tires were less prone to flats and much easier to fix.

Over time, companies like Michelin, Continental, Panaracer and IRC developed lighter clincher tires with improved durability, and Mavic created  rims--the "E" series--that adapted the weight-to-strength ratio of tubular rims to clinchers and added a "hook" bead that made it possible to use high-pressure folding clincher tires.  (Any rim made today with even a pretense of quality, in whatever diameter or width, is based on the “E” rims’ design.) Thus, the gap in speed and road feel between tubulars and clinchers narrowed to the point to the point that whatever benefits tubulars offered no longer offset their fragility, at least for most riders.

After my brief foray into racing, I kept one set of tubular wheels for fast rides.  But, as I developed other ineterests (and relationships), I decided that I'd rather spend my time riding than fixing flats.  Also, tire-making companies were offering fewer options in tubulars, or stopped offering them altogether.  So, about twenty years ago, I rode tubulars for the last time.  I'd own my last set of such wheels and tires, briefly, when I bought "Zebbie," my 1984 Mercian King of Mercia, just over a year ago.  Hal Ruzal built me a nice set of clinchers (with classic Campagnolo hubs and Mavic Open Pro rims) and I sold the tubulars that came with "Zebbie" about a month after she came into my life.

I mention all of this to provide context for a story I came across yesterday.  It seems that the tubular vs. clincher, and not the tubeless vs. tubed, question has once again reared its head.

For the 2021 racing season (assuming, of course, there is one), both of Specialized Bike's  World Tour men's teams--Bora Hansgrohe and Deceuninck-Quick Step--have committed to abandoning tubulars for all races except the early-season classics.  Both teams plan, eventually, to get away from sew-ups altogether.

Roval Rapide CLX wheel

What might surprise some people, though, is that they are not casting their lot with tubeless tires.  While both teams used tubeless, as well as tubular, wheels and wheelsets during the shortened 2020 season, their decision to go with clinchers might have been inspired by Julian Alaphilippe's Tour de France stage win on them.  Also, Roval, the wheel-maker of choice for many in the peloton, is making two of its lightest road wheelsets for use only with tubed clincher tires. "When it's possible to create tubeless wheel/tyre systems that outperform tube-type clincher systems, that's what we'll recommend to riders," read a statement from the company that, for the past couple of years, looked ready to go all-in on tubeless clincher tires.

So, for the time being, some of today's young racers on high-tech carbon-fiber bikes have returned to the choice many of us made two or three decades ago:  clincher tires.  With inner tubes.

What Michael Carries In His Back-Pak

In one of my earliest posts, I recalled the messenger bag I carried before messenger bags became fashion accessories for hipsters.  I used it as I sluiced through the streets of Manhattan (and, occasionally, beyond) on my bike to deliver things legal and otherwise.  In that bag, I carried everything from prints (from a Soho gallery to Judy Collins. Yes, that Judy Collins!) to papers (for contracts to, and possibly on) as well as, believe it or not, pizza.  It also bore the weight of secrets I was trying to keep and issues I was avoiding by working a job where I never had contact with anyone for more than a couple of minutes at a time.

Some messengers still use bags like the one I had, except that they're made from different materials than the canvas that formed my workday luggage.  Since then, I've seen bicycle delivery folks use everything from "pizza racks" on the front, to panniers on the rear, of their bikes.  Some also use baskets of one kind and another.

Lately, I've seen another conveyance that looks the kind of insulated rectangular bags that are sometimes attached to "pizza racks,"  with backpack straps attached.  I imagine that they are handy for making deliveries, but I don't imagine that I'd want to use one to  carry loads for any significant amount of time:  The boxy shape doesn't look like it would be very comfortable on my back.

They are used, however, for a good reason:  It allows bicycle (and, increasingly, e-bike and motorized-bike) riders to make more deliveries in one trip than other kinds of bags or baskets would.  That would be especially important, I think, if those who receive the deliveries haven't had much, or anything, to eat in a couple of days--or if you wouldn't find them by knocking on a door or ringing a bell.

Michael Pak uses such a backbox. (Is that a good portmanteau of "backpack" and "box"?) So do some of his fellow delivery people in Los Angeles' Koreatown.  But they're not delivering kimchi to young software developers or hipsters.  Rather, the grateful recipients of their deliveries live on the neighborhood's streets.

One Monday in August, Pak put out an Instagram post asking for volunteers to help him deliver lunch kits on Friday.  "I picked up groceries on Thursday and packed them in my studio apartment while watching a movie," he recalls.  "Within an hour, I'd packed 80 lunches and called it a night."  He went to bed that night with no idea of who, if anyone, would show up the next day.

To his surprise, about 15 people came out to help him distribute the meals.  He realized, though, that his meal distribution could not be a one-time effort. "I realized that for this to work and grow, I had to be consistent and not be afraid to ask for help," he says.

Now, with the help of his friend Jacob Halpern and local volunteers, "Bicycle Meals" is making deliveries in Koreatown, to those without homes, on Mondays and Fridays.  The meals they deliver include a sandwich, fruit, water, snacks, hand sanitizer and a mask.  "The long term goal is to feed our neighbors every day," Pak declares.

To make his deliveries, he rides a BMX bike "gifted from a friend."  The "backbox," is, however, key.  "It can store up to 15 lunch kits at once," he explains.  "It's one of those Postmates delivery bags I found on Amazon."  

I carried a lot in my old messenger bag.  But I don't think I delivered anything as important as what Michael Pak delivers in his Backbox.

(Hmm.. Should we call it a Michaelpak?)

Photos by Wray Sinclair.

Aiming For A Cyclist

In recent posts, I've noted increasing hostility from drivers.  Because more bike lanes are being built, or simply more of us are on the road, we are blamed for slowing motorists down or taking away their parking spaces.  Or they are simply flustered over any of a number of other things, and we just happen to be there when they want to take out their frustration.

Apparently, the phenomenon of drivers directing their rage against cyclists is even more widespread than I'd realized.  And it takes even more disturbing turns than, so far, I've experienced.  In this video, a pickup driver aims for a delivery cyclist in the supposed bike haven of Portland:

According to BikePortland Editor/Publisher Jonathan Maus, this incident is just the latest in an apparent epidemic of such attacks in the Oregon city.