Archive for the ‘Technical Stuff’ Category

The Bakfiets is Safest. Probably.

Sunday, January 1st, 2012

bakfiets-tour-bloemendaal-aan-zee 20

I had to read this article several times to understand exactly what was going on and what was confusing me. Namely a piece in the Belgian newspaper “Nieuwsblad” (means… “Newspaper) proclaims the bakfiets as the safest type of bike for carrying kids, safer thus than bike trailers or child seats on conventional bikes. Now that’s no great surprise for me and not a finding I have any reason to argue. I carry my own two precious ones in a bakfiets and further earn my salary making and selling them. Workcycles has thousands of bakfietsen on the roads and thus far, knock wood, we’re not aware of any notable injuries. Then again we’ve also sold thousands of conventional type bikes, many of them equipped to carry kids and ridden daily, and I’m not aware of any notable injuries there either. So that’s not a terribly conclusive comparison; It just suggests that carrying kids on bikes is a very safe thing to do.

The Nieuwsblad article refers to a recent test by the German Automobile Club (ADAC). So I searched the ADAC site (geez it’s handy to be able to understand a few languages!) as source but nowhere could I find any mention of a bakfiets, never mind a test comparing the safety of kids carried by bakfiets with anything. I did however find an ADAC test comparing child carrier trailers with child seats on conventional bikes. In this study ADAC compared one top-tested trailer (Burley Cub) against one top-tested rear child seat (Römer, model not specified). Nieuwsblad reported that they simply rammed each rig into a stationary object at 25km/hr but on the ADAC site they show each rig being rammed from the side by a VW Golf and report that the head-on collision was also tested. That covers a broader range of high-danger crash scenarios than Nieuwsblad 25km/hr head-on bike T-bone. Not surprisingly, the trailer tended to remain on two wheels while the much higher mounted child seat on regular bike was consistently knocked over.

Just for background info our German neighbors LOVE testing products and they relish putting a big “Zeer Gut” or “Gut” in red letters on advertisements and products. They’re also renowned for their rigorous testing methods. The bike tests run by German cycling magazines absolutely put to shame the fluff published by the US bikey press. The Dutch bike rags fall somewhere in between but they still bore me to death.

But how then did Nieuwsblad conclude from a test comparing trailer and rear child seat that a bakfiets is the safest?Good question! Well it seems that Roel De Cleen of the Belgian Fietsersbond (Cyclists’ Union) just made that part up. I don’t mean to imply that it’s an unreasonable conclusion. It is actually a very logical extrapolation… but it’s just not supported by the data cited in the article. Moral of the story: Be critical when reading test results, especially when not reading the original source.

Happy New Year everybody!

I hope I’ll have more time to write in 2012 since 2011 was rather sparse.

Workcycles E-Fr8′s? Really?

Friday, October 21st, 2011

Electrische Fr8's-2
This is how stable a Workcycles Fr8 stands on the Massive Rack. Photo by Tom Resink, who also built these bikes.

Yes, we are asked constantly whether we’ll build a Fr8 or other Workcycles bike with electric assist. The answer is basically yes and no. By no means are we philosophically opposed to the idea of adding a motor to our bikes. We are however very much aware of the many downsides so we generally advise against it unless the need is clear.

For handyman firm Buurtklusser in hilly Nijmegen the need for some help was very obvious. This particular Fr8 will have its Massive Rack frequently loaded up with 100+ kg of cargo and the giant newspaper panniers filled with packages. How would you like to pedal uphill with a total weight of 250kg? In case you’re curious check out their blog at Trapkracht.nl (“Pedal Power”)

Further these bikes will be operated by professionals so we’ve a pretty good chance they’ll be used appropriately and maintained properly. That’s very different from sending special bikes out into the wild with customers who may not have the skills for (or interest in) maintaining them, nor a suitable workshop in the area to turn to when necessary.
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Eurobike 2011: Lighter, New Decals & Screw Bikes for Normal Folks

Wednesday, October 5th, 2011

Eurobike 2011-298
Workcycles’ Tom Resink really does take much better pictures than I can.

Wow, I see it’s been almost three months since my last post here at BEM. I guess time just flies when you’ve two little kids running around, not to mention 15 employees, a few dozen suppliers, several thousand customers and a fleet of your own bikes begging for regular exercise. Somehow my blogging hobby just gets pushed to the back burner. I can’t even blame good weather and fun outdoor activities for my lack of writing activity, since the sun has mostly hidden behind a cold shield of clouds and rain since May. Heck, we had to go to the south of France for three weeks to find some decent weather!

But yes, we did make the annual pilgrimage to Eurobike in the famous Zeppelin City of Friedrichshafen, Germany again. And being approximately my gazillionth trade show visit I wasn’t surprised by much. Finding some cool stuff in the first few trade shows one visits is no great trick. That is, of course, assuming you’re actually at an expo for a topic you care about rather than, say, me going to the Office Furniture Expo. But that would be silly because I’m a bike nerd and not an office furniture geek, and though I have ideas for other businesses none of them have anything to do with office furniture aside from needing a place to sit and put my stuff.

But I digress. We went to Eurobike and despite searching quite thoroughly we didn’t find much that seemed “newsworthy”. In all fairness making headlines isn’t the primary goal of our visit. We go there because suppliers, dealers and other industry insiders from all over the world are also there. You get a better understanding of the people you do business with when you talk face to face. We explained to the owner of the Italian centerstand company that all of their new stands broke and he showed us improvements and asked to get some examples back. We exchanged business cards and then he ignored my emails. Over at Sun Race / Sturmey Archer we politely told them how a certain new shifter they’re selling is absolutely horrible, which we’ve since been in regular contact about and exchanging samples and vintage parts for inspiration. And sometimes your friend at A-Bikes connects you to somebody he knows at B-Bikes who knows a guy at C-Bikes who might be good to make the left-hand threaded, eleven speed spokes you need.
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Fixed Gears at Workcycles?

Monday, April 18th, 2011

leftie

I’ll admit to finding the current worldwide rage for “fixies” rather amusing but then again I was stripping my friends’ and colleagues’ bikes down to minimalist, fixed-wheel, rat bikes fifteen years ago. So I do understand the aesthetic and beauty of simplicity. And I raced on the track for years and still “train” (for what goal I forget) weekly at the indoor Amsterdam Velodrome during the winter.

Besides I’d much rather see a million pretentious or wanna-be fixed-gear bikes than a million horrid, generic, silver hybrids with suspension forks… even last year’s ugly hybrids dressed up this year as considerably cuter “city bikes” with too short, plastic fenders, cosmetic racks and painted some apparently politically correct color like “sand” or teal green. Indeed if that’s the bike industry’s idea of a utilitarian bike I’d rather just ride a flat black, 20 year old steel Bianchi road bike stripped down to one gear and one brake… which in fact was my daily ride for a decade in California. I still have that bike but now it’s an extra bike since we live on the fourth floor, it’s not built for outdoor life and it’s also not a particularly practical way to carry little kids.

But I digress. Though Workcycles’ focus is heavy duty city and transport bicycles our workshops repair and modify all types of bikes. Even fixed gear bikes sometimes, and not just giant Dutch cargo trikes which also happen to have fixed wheels. We weren’t voted “Best Bike Shops in Amsterdam” (out of about 250) for nothin’. This particular fixed-gear modification I found to be interesting in a very typically Dutch (i.e. practical) way.

“Dave” visits us periodically for parts and service, almost always with dog in tow. Last week he came in with a broken chain as a result of his dog’s leash getting caught between chain and chainring. Bummer. We discussed the repair and Dave asked whether it would be possible to move the drivetrain over to the left side of the bike since his dog runs on the right side. He’d get more “fred marks” on his left leg but he and dog would be safer. I looked the bike over. It had a proper fixed-gear hub with a reverse thread lockring and a symmetrical bottom bracket axle so sure, it should work just fine assuming he’s not going to be cranking away like a track sprinter. It did turn out that the bottom bracket was trashed and had to be replaced with something shorter than what we normally use on city bikes but we found a perfect fit in my personal collection of random parts. A few hours later Dave was back on the road with a strange looking but more practical bike. I find it a down to earth example in the current rarified a-fixie-nado atmosphere of NJS track parts, collectors item keirin frames, precious colorway coordination curation and stupid wheel combinations.

Thanks for the use of your photo Dave.

Guest Post: Cargo Bikes and the Information Revolution.

Tuesday, February 8th, 2011

five kids on a long john bike

An introduction to the introduction from editor Henry:

About a week has passed since this post first went online and as of this moment there are 109 comments, quite a few of them rather extensive, a couple mildly angry or at least indignant. A few people have expressed dismay that I would publish such a piece, even if I didn’t write it myself. Another has requested that I add something to the introduction to further qualify the post below. That last request seems the most appropriate approach and what I’ll try to do now.

Interestingly though the post is widely criticized and has even apparently sparked offline discussions in coffee shops (both flattering and a little scary) nobody has suggested that I remove it. This is good since that would be quite a disappointment to all those who’ve invested time in writing, editing, commenting, discussing and even writing their own blog posts about this post. So now I have to actually figure out what it is that really needs to be said to further qualify this post.

That the post is, in retrospect, a grand faux pas is an understatement. But every now and then I just do that: I make a weird misjudgment and stick my foot deeply in my mouth. As one miffed commenter noted it doesn’t matter so much that it’s a guest post; It is my blog and I determine its content. Fair enough.

But what is exactly the problem? I’ve reread the post and slogged through the comments several times. I see two basic issues:

1. Several commenters dispute Josh’s experiences and opinions about two of the bikes discussed: the Bullitt and the Metrofiets. The Metrofiets I’ve only seen in photos so for the sake of discussing the post I’ll focus on the Bullitt which I’m familiar with.

Concerning the Bullitt I had already added from the beginning an editor’s comment that Josh’s opinion about aluminium being an unsuitable frame material was unsubstantiated and probably unjustified. Nonetheless a discussion raged about whether aluminium is a suitable material for such a bike, something I found rather silly.

Yet for all the defense it’s received here the Bullitt IS, in all fairness, a quirky bike. I’ve ridden several of them, loaded and unloaded (as well as being a noted bike designer who’s ridden a LOT of bikes) so I’m not in the dark here. Aside from the still underground CETMA the Bullitt really has no competitors in the world of light, sporty Long John type bikes. Structurally and conceptually it’s brilliant: light and apparently quite tough. But come on folks, please accept that it’s got its quirks too: The steering geometry is far from ideal and the ergonomics are strange. By no means is either factor a deal killer; After a little while you get used to the handing and forget it was ever a problem. You either adapt to the bike’s sitting position or swap out a few parts to make it fit better. My own bike designs have their own quirks and I really don’t mind hearing about them either.

I suspect that any criticism of a bike with such a cult following as the Bullitt will deliver some angry fans to your doorstep but Josh unfortunately digressed too far into opinion instead of more objectively addressing the bike’s virtues, faults and eccentricities. Interestingly, Josh’s Metrofiets critique stuck more closely to his own experiences but was also met with resistance.

2. Interesting material but in the wrong place: I believe the crux of the issue is that posting critical reviews on the forum of a person or company playing in that very field is just tricky business. It isn’t impossible: I do it regularly and somehow seem to find shelter in a steadily more developed mix of obvious irony, humor, absurdity, self-reflection and hard-core objective criticism that’s just difficult to argue with honestly. And, yep, sometimes I just plain old shoot myself in the foot. That I accept as a necessary consequence of keeping Bakfiets en Meer, and by extension Workcycles honest and real. There’s no fluff here folks and I’m not a professional writer.

But that’s all much more difficult to keep straight in a guest post. Josh has a lot of experience and insights and a lot to say. I was game to let him take a crack at a post and I take full responsibility for the results. But then as he notes in one of the now 110 comments below, he’s more comfortable working with metal than with words. And I have only so many hours for blogging. I do also run a company, have a wife and two little kids and like to ride my racing bike fast with my friends when possible.

We’ve discussed this experience offline and Josh seems game for another try… ahem yes, with a somewhat different approach. We’ll see how it goes.

Regards,
Henry

An introduction from editor Henry (the original introduction that is):

Over the years I’ve offered several colleagues the opportunity to do a “guest post” but maybe only once before has somebody gone for it. I’ll begin this one with an introduction and preface:

I didn’t write the post below nor do I necessarily even agree with some of the things Josh wrote. It’s an opinion piece. Nonetheless I found it an interesting and discussion provoking read and after somewhat too many hours editing chose to publish it. Even though it’s written by somebody completely independent of Workcycles, I founded Workcycles and this is my blog. So no, I can’t really avoid taking some heat for the criticism of colleagues’ bikes but I can live with that.

I’ve known Josh Boisclair for six or seven years now. He’s worked for two of our dealers, visited us in Amsterdam a couple times and spent a week or two “learning” in the Workcycles workshops. Realistically he was learning much more about Dutch culture and cycling than about building Dutch bikes because he’s one of those few, gifted mechanic types who doesn’t really need to be shown how something as simple as a bike works. With a couple hints about what to be looking for he’ll figure out the rest. Josh has spotted and solved a couple of our production irregularities from afar.

Such characters don’t generally come without their eccentricities and Josh is no exception. Perhaps Josh’s tick is that he’s brutally, sometimes painfully honest. If he sees that something’s been poorly designed or made… he’ll say it regardless of the political ramifications. If he digs something you’ll hear that too. He doesn’t kiss ass and that makes a great barometer for the thick-skinned. And I suppose that’s why you get to enjoy Josh’s take on cargo bikes ca. 2011; If he didn’t like my own bikes he’d have explained exactly why and then there wouldn’t really be any point in me publishing such unflattering stuff on my own blog.

The other tick is a rather humorous tendency toward conspiracy theory or at least a belief rooted in the misconception that everybody has innate technical understanding. Thus one who sells something that’s less than “as good as they can be reasonably expected to produce” is quickly categorized as dishonest, rather than possibly naive or disinterested.

So my dear colleagues apologies in advance for any bruised egos that result from the report below. I didn’t write it but I do trust both the technical understanding and honesty of its source. Put your hardhats on and have a fun ride!

Regards,
Henry

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Frozen Cable Time (Again)

Wednesday, December 8th, 2010

snow-workcycles-bikes
Workcycles bikes demonstrating that they’re not spring flowers. They’re built to live like this.

This is a slightly updated repost: Winter is upon us somewhat early this year and this is highly relevant info for anybody who cycles through the winter, especially if your bike is stored outdoors.

By far the most common problem that the cyclist encounters with winter cycling is the brake or gear cables freezing. This is generally the result of water condensing or dripping into the cable housing and then freezing, effectively bonding the inner cable to the housing. It only takes a tiny bit of water to do this but we fortunately have a solution. Read below for an explanation.
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We arrived at work yesterday figuring that the sub-zero cold, wind and snow would keep most of the customers away, leaving us with time to work on some projects. The highest priority is reconfiguring our workshop after building a massive, floor-anchored, steel frame to hang our electric bike lifts from. It’s a great improvement but not entirely our own initiative. The lifts, you see, were bolted into the 150 or 200 year old wooden beams of our ceiling… and thus the floor of the neighbors upstairs. Though the lifts are nearly new and operate very quietly they do make some vibration. Standing on the concrete (over sand) floor we never noticed this vibration but it drove the lady upstairs crazy. Actually she’s complained very vocally and angrily about a lot of things, apparently calling and writing every possible authority on a regular basis. Most of her complaints have nothing to do with our activities (there’s another bike workshop next door and several apartments have been renovated), but the vibration was a legitimate issue according to the various city inspectors who visited to investigate.
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E-Urobike 2010: Same stuff, new colors?

Friday, September 24th, 2010

E-Urobike 2010-other 3
Richard contemplates the meaning of “tuned compliance concept” in front of a Zeppelin.

A couple weeks ago we made our annual trek to Zeppelin capitol of the world, Friedrichshafen, Germany for the Eurobike trade show. Most bike nuts would wet their pants over the idea of some 15 former zeppelin hangars full of the latest carbon fiber race wheels that weigh less than your toenail clippings, extreme downhill bikes with a meter of suspension travel, our favorite pro racers’ bikes complete with real Roubaix mud still in its nooks and crannies and more buzzwords than you can shake a stick at. I, however, am jaded by 30ish years on and off around the bicycle industry. These days I go not to ogle the latest gear but to talk to suppliers and dealers, shake some hands and meet some new people. I also like to take pictures of the dumbest stuff I see but even that’s getting difficult because it’s mostly the same dumb stuff as the past few years, maybe copied by somebody else.
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Copenhagen-Amsterdam War in the VogelVrije Fietser

Wednesday, January 13th, 2010


Some Danish guy on a WorkCycles rental bike in Amsterdam, originally uploaded by Amsterdamize.

I usually flip through the “VogelVrije Fietser” (literal translation: “Birdfree Cyclist”) in about 30 seconds and then pass it to my toddler son for shredding but this issue (January 2010) had a few bits worth sharing… before Pascal gets his way with it. The first interesting piece is the latest salvo in the imaginary Copenhagen-Amsterdam war of cycling supremacy. The Copenhagen ambitions to achieve or already have achieved the coveted, self appointed title of World Cycling Capitol are already all over the Internet and the BirdFree Cyclist even made the trek up there to the great white north to see what all the fuss was about. In a nutshell they made the great revelation in the previous issue that the crafty Copenhageners were just as busy improving cycling facilities in their city as in most Dutch cities, and that they’re being more vocal about promoting this fact. Whoopee, the Danes also see value in a city where many people cycle!
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The Mother of all Centerstands

Wednesday, January 6th, 2010

monark-centerstand-workcycles-gr8 1

It’s ironic that some humble, dirty parts such as a parking stand actually have far more influence on your cycling experience than a beautiful frame or fancy, name-brand components. A stable, smooth working parking stand enables you (for example) to safely load up the kids and groceries, plop the bike onto the ground and cycle away uneventfully… just how you want it to be. But few people pay attention to such mundane things in the showroom so this is exactly where most manufacturers save a few bucks or euros. WorkCycles isn’t “most manufacturers” because we actually ride our bikes every day, carry our kids on/in them, move our stock between two shops on them… and listen to our customers who do the same.

Finding decent parking stands has been one of our most vexing challenges. During our quest for the perfect parking stand we’ve tried dozens. Most are so crappy that they don’t even deserve mention: All those Hebie copies from Taiwan and China fit poorly and then either bend under the weight of a loaded bike, quickly get scarily sloppy and break, or seize up from corrosion. The more sophisticated folding stands from Humpert and Spanninga (Sparta) have also failed our durability tests miserably. The cast aluminium Pletschers are light and pretty but not strong enough for bikes with child seats and heavy bags.
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Frozen Cable Time

Sunday, December 20th, 2009

amsterdam-12-09 9

We arrived at work yesterday figuring that the sub-zero cold, wind and snow would keep most of the customers away, leaving us with time to work on some projects. The highest priority is reconfiguring our workshop after building a massive, floor-anchored, steel frame to hang our electric bike lifts from. It’s a great improvement but not entirely our own initiative. The lifts, you see, were bolted into the 150 or 200 year old wooden beams of our ceiling… and thus the floor of the neighbors upstairs. Though the lifts are nearly new and operate very quietly they do make some vibration. Standing on the concrete (over sand) floor we never noticed this vibration but it drove the lady upstairs crazy. Actually she’s complained very vocally and angrily about a lot of things, apparently calling and writing every possible authority on a regular basis. Most of her complaints have nothing to do with our activities (there’s another bike workshop next door and several apartments have been renovated), but the vibration was a legitimate issue according to the various city inspectors who visited to investigate.

So the city ordered the building owner (a social housing corporation that manages tens of thousands of properties) to fix the vibration problem. It was decided that the only solution was to totally isolate the lifts from the floor beams, and the only practical way to do that was to build a steel frame all the way to the floor. We’re very fortunate and thankful that they took care of the job and paid for it. But it still requires an investment of several days of our labor to refit the lifts and lights. We took the opportunity to make them fully adjustable on both X and Y axis as well as angle, and now we’re adding more lights. I don’t think a workshop can ever have enough light.

Anyhow, this is all we were thinking about yesterday morning so I got busy with the scaffold, drills, plugs, screws and wiring to hang the fluorescent boxes on our ancient ceiling. And then the first snowy Cargobike and customer came in:

Customer: “My bike is almost impossible to ride. It’s really slow, and I think the brake lever might be broken.”

Mechanic: “I’m pretty sure your cables are frozen.”

Customer: “But I think there’s also something wrong with the brake.”

Mechanic: “The brakes are probably fine but they’re being locked by the frozen cables.”

Customer: “Oh wait, now it seems to be fine.”

Mechanic: “Sure, your bike is indoors so the cable just thawed, releasing the brake. It’ll freeze again a few moments after going outside. If you can wait 15 minutes I’ll fix it.
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