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Friday
Oct052007

Lugs

A bike store owner told me recently told me of a young customer in his store looking at a 1980s vintage steel bike that was in for a service. He pointed to the lugs and asked the store owner, “What are these for?”

I find it amazing that a method of building bicycles can be around for over a 100 years, and become lost to a new generation in ten years or so.

Since the bicycle’s invention in the late 1800s the traditional way to join steel tubes to make a bicycle frame was by melting brass into a lugged joint. Similar in a way to a plumber joining copper pipe by sliding the pipe into a pipefitting, heating, and filling the joint with solder.

Brazing, as it is known, done at a higher temperature and the resulting joint is much stronger. Early lugs were in fact pipefittings; these were heavy steel sand castings, cut square at the edges, and machined on the inside to fit the tube.

As steel tubing for bicycles became thinner and lighter, it was found the tube would sometimes break at the edge of the lug. This was because the lug was far stronger than the tube.

In any structure, if you make a joint far stronger than the parent material, the material will fail during stress, immediately adjacent to the joint. Framebuilders started filing the lugs thinner to bring the strength closer to that of the tube. For the same reason, they also started cutting the lugs into fancy shapes to eliminate the square edge of the lug.


By the 1950s the cutting and filing of lugs became the way a framebuilder would express his art and individuality. Hetchins (Left.) were one of the first to take this art to extremes.

By the 1960s and 1970s, fancy lugwork became too costly and lugs stamped from sheet steel and welded, became available. The top picture is a set of pressed steel lugs that I prepared during the 1970s, with some custom shaping a cutout work.

By the 1980s “Investment” cast lugs became available. A method developed for the aircraft industry, investment casting was achieved by first hand making a lug. From this “pattern” lug a simple plaster mould was made.

A lug made of wax was cast in the plaster mold; this in turn was coated in a ceramic material and fired in an oven. The firing hardened the ceramic coating and at the same time melted the wax from inside, leaving a void the perfect shape of a lug.

Molten steel was poured into the mold, and when cooled the ceramic mold had to be broken to remove the finished lug, hence the name, “Investment” casting. An expensive process, but the finished lug was near perfect, the tubes fit with no machining required; very little filing required from the framebuilder. Lugs, bottom bracket shells, and fork crowns are made this way.

Traditionally frames were never welded. Not because welding was not strong enough but rather the heat required to weld weakened the parent material adjacent to the weld. By the 1980s welding technology had advanced to where it could have been used to build lightweight frames. However, at the time customers, connoisseurs of the lugged frame would not accept it.

This changed during the “death” of the road bike in the early 1990s. Mountain bike manufactures could get away with the quicker and cheaper welding process, because the MTB was new and there were not the old standards, and traditions to break down. There was a whole new generation who grew up with welded BMX bikes.

When the road bike was reborn, sadly, for some of us it was an ugly bastard. Its gene pool contaminated by MTB and BMX, the beauty, style and class bred out of it. A well, that is I suppose the price we pay for progress.


Wednesday
Oct032007

Lighten Up

My last post about the terminally hip fixie crowd was an attempt at humor. If a person tells a joke then has to explain it, it is not funny.

If a certain reader of my last post can’t tell it is satire without me labeling as such, then maybe you should get to know my style of writing before rushing to judgment.

If you think I am prejudiced against this or that cycling faction you are wrong, and the problem is not mine, but your inability to laugh at yourself.

There are people in this world who would kill us because we don’t hold their particular religious beliefs or values. We make fun of them, not because we are prejudiced, but because we see the absurdity, the humor in it.

My recent post, Womankind, and the website I was reviewing, Copenhagen Girls on Bikes, is still drawing criticism for being sexist and perverted when I intended it to be a tribute to the grace and beauty of women.

When a woman (or a man for that matter.) dresses in nice clothes, they are making the world, their environment, more beautiful.

However, I am not supposed to look and admire without the accusation of being some kind of pervert. Maybe women should dress in long black robes from head to toe, that way we wouldn’t be tempted to look.

And maybe the fixie crowd should not post pictures of their bikes and videos of their trackstand competitions on line; so the rest of us will not be tempted to make fun of them.

Label: This is a rant.

Monday
Oct012007

Fixed gear enthusiasts are discovering they have a hole in their rear


I came across a website for “Fast Boy Fenders,” an enterprise that makes beautifully crafted wooden fenders for that terminally hip crowd, the fixed gear enthusiast.

The main selling point for this item is stated like this:

“Been wondering what to do with that hole in your frame where your rear brake used to be?”

One would think the main selling point for fenders would be that they keep rain water from spraying up your back, but not these fenders. These are works of pure art, and at $75 for a small rear fender, the last thing you would want, would be to get them wet.

There is an extreme shortage of old steel track frames. They were only a small part of most framebuilder’s production; I only made a handful. Most fixed gear exponents are using road frames, which brings up the question, what to do with all the superfluous braze-ons?

You definitely don’t want to cut them off, because this will devalue the frame, and when this craze is over, probably around next spring, you will be selling off the frame, or converting it back to a road bike.

It occurred to me that a whole cottage industry could spring up, making all kinds of cool shit to hang on your bike.



The top tube pad (Left.) already covers up the cable eyelets on the top tube, so we don’t have to worry about them. Here are some other ideas I had:

The rear derailleur hanger:

The first thing that came to mind was a kickstand. However, I dismissed this idea immediately as not being hip enough. Then I thought, why not use it to hold a bolt-on rear sprocket guard? Why would you need a rear sprocket guard? It doesn’t matter why, it would be such a cool thing to have.

There is no apparent reason to have a top tube pad, but ask any fixie enthusiast and he will give you at least three good ones. Part of the fun would be coming up with a reason to have a rear sprocket guard.

The down tube gear lever braze-ons:

How about two cup shaped knee pads that bolt on to the lever bosses? When you are doing one of those nose on the front wheel stops, just lock your knee into one of these pads and it will stop you quicker than Brittney Spears singing career.

The water bottle braze-ons:

This one was a little tricky. Maybe a bolt-on card holder for those who have aero wheels and can’t put the cards in the spokes?

So there you have it, just a few starter ideas; I’m sure you can come up with others.

My apologies to Bike Snob NYC, who has made a blogging career out of lambasting the fixie crowd; I didn’t mean to steal your thunder. (Your concept maybe, but definitely not your thunder.) If a person is going to steal ideas, then steal from the best is my motto.

Friday
Sep282007

Becoming Bicycle Friendly


My adopted home city, Charleston, South Carolina is a wonderful place steeped in history, culture, and art.

I number amongst my friends and acquaintances many talented writers and songwriters.

The South Carolina state auto license plate has the slogan, “Smiling faces, beautiful places.” One of the things that struck me about Charleston in the almost six years that I have been here is the friendliness of the people.

Complete strangers will strike up a conversation with you. I have found in other parts of the world, and even in parts of the US, to speak to a stranger is viewed with suspicion. People who talk to strangers are looked on as some kind of loony person. Here I will rarely pass a stranger without at least a smile or simple greeting exchanged.

However, having made that statement, when Carolinians get in their cars it is a whole different story. Columbia, the state capital, had the dubious title earlier this year of having the worst drivers in the US. Friendly smiles and simple greetings are often replaced with a great deal of horn blowing.

So, it was with extreme pleasure I read this week that Spartanburg, SC had become the first city in this state to be awarded the prestigious League of American Bicyclists Bicycle Friendly status.

The League of American Bicyclists, founded in 1880 before the use of automobiles was widespread, was instrumental in getting paved roads established. The same paved road that most drivers enjoy and take for granted today. The same roads a few begrudgingly share with those of us who still like to ride a bicycle.

Spartanburg has become only one of twenty-four cities in the US to receive this honor; they have done so in a relatively short time. Their Bicycle Initiative Program was started in 2004 with a grant of $104,000.

Charleston take note. If ever a city could use a Bicycle Initiative this is one, with the downtown parking and congestion problems. What better way for a visitor to view our historic city than by a leisurely ride on a bicycle?

Two things go hand in hand; there is a need to get rid of the congestion to make it possible to ride a bicycle on the narrow downtown streets. More bicycles mean less cars, easing the congestion.

Wednesday
Sep262007

Bobbies on Bicycles

Nothing portrays an image of the UK better than a British Bobby on a bicycle. Road safety is all about visibility, and believe me the police officers you see in the picture above were extremely visable.

It used to be a requirement in the British police that applicants be at least six feet tall; add the tall helmet to that and they would appear to be nearer seven feet. Then sit them on the good old British “Sit up and beg” roadster bike, that the average person would need a step ladder to mount, and they would stand out in traffic like a Willie Nelson tour bus.

Many was the time in the 1950s when I’d be out training at night with the local chain gang, and one of the group would be sure to have a dead battery in his tail light, the local Bobby would chase us down on his big old Raliegh "All-Steel" bike with a Sturmey-Archer three-speed hub gear.


You can imagine my dismay when I recently came across this image (Left.) of a modern British police officer on a bike.

My first reaction was, “WTF do you look like?” Everything I loved about my homeland is slowly disintegrating. The British Bobby has become “Euro-Fred.”

Gone is the authority figure; he looks like a Mall Food Court Janitor, or a Parking Lot Attendant on his way home from work. And where did they get the helmet? Wal-Mart or Halfords?

This is the British Police for Cris’sakes, couldn’t they design something purpose built that offers protection and a little dignity.

These images came with a story in the British, Sun Newspaper, about a young police officer, killed while on duty on his bike, when he was stuck by a lorry. (Heavy flat bed truck or box van.)

I do not want to make light of this tragic incident, but the reaction by the Manchester, UK police department, was to ban police officers from riding bikes, until they can receive more training. That pisses me off; how about banning drivers who don’t know how to overtake cyclists without running them over.

Britain is apparently spending millions of taxpayer’s money on promoting cycling in big cities to ease congestion and to fight obesity, both of which will cost taxpayers even more in the long run.

By banning police officers from riding, the Manchester Police are sending out a message that cycling is dangerous. If a police officer is not safe on a bike, what hope for the rest of us, is what most people must be thinking.

I just hope they don’t have a terrorist attack or an armed robbery in Manchester, because the police there might just say, “Hey, that’s too dangerous, we can’t handle that.”

I must agree with the Sun Newspaper, the police authorities are wrong on this one. There has been a tragic loss of a young life, one of their own, and they are not facing the real problem. A few sloppy, selfish, drivers who have a complete disregard for human life.

They should be using this tragic waste of a young life to arouse public outrage and awareness of bicycles on the road, and push for harsher penalties for reckless and inattentive drivers who kill cyclists. Like revoking their license and forcing them to ride a bike.