Showing posts sorted by relevance for query drillium. Sort by date Show all posts
Showing posts sorted by relevance for query drillium. Sort by date Show all posts

26 June 2014

Which Mercian Should He Ride Today?

It wouldn't surprise you too much to know that one of the blogs on my reading list is Mercian Cycles'.

People are amazed when they find out that I have four Mercians.  My usual response usually goes something like, "I'm the luckiest girl in the world."

(All right, now you know where my priorities lie!)

I figured that there are other people who have more Mercians than I do, but I don't know any personally.  I'd like to meet them--or look at their collection, anyway!

One such person--or, more appropriately, his bikes--are the subject of today's post on the Mercian Cycles blog.

A fellow named Kyle--who goes by the nom de blog "Retrogrouch"--has just restored a 1980 Strada Speciale with period-correct parts, including a first-generation SunTour Cyclone derailleur, Simplex retrofriction levers, milled Sugino Mighty cranks with "drillium" chainrings and Campagnolo Nuovo Tipo hubs.  This Strada Speciale, he says, is his eighth Mercian.

His collection includes vintage as well as modern models--and a modern bike with vintage Campagnolo parts that looks like a vintage bike.  They're all lovely bikes, so it's hard to decide which I liked best.

If you've been following my blog, though, you can probably understand why I like his 2008 Strada Speciale track bike:



or his 2012 Vincitore, built as an urban/path bike:



or, for that matter, his second Mercian, a 1979 "Classic":



I'd love to know how Kyle decides which bike to ride.

08 October 2014

Cat's Cradle--Or Chainring

I promised myself not to make every other post about chainrings with elegant or unusual designs.  And I'm keeping my promise:  I've written three other posts since the one about the Liberia chainring.

So I don't feel guilty about writing another post about a sprocket, especially this one:

 Solida Cats 44t - Fine

Its maker, Bespoke Chainrings of Australia, is producing this ring based on the design of one made by French manufacturer Solida around 1910.  

If you bought an entry- (or even mid-) level Peugeot, Motobecane, Gitane or other French cycle during the '70's Bike Boom, there's a good chance it had a Solida cottered crankset.  Some later bikes came with low-priced Solida melt-forged cotterless cranksets; apparently, Solida never made a high-quality forged cotterless crankset. However, at the time the original "cat" chainring was produced, Solida had a reputation that reflected its name: They were solid and sturdy, if not as light or refined as their counterparts from makers like Stronglight, Specialites TA or even Zeus or Nervar.  

That chainring certainly is charming and a temptation.  For now, Bespoke is making it only to fit cranksets with the 50.4mm bolt circle diameter.  Those cranks include the Specialites TA Pro-5-Vis (a.k.a. Cyclo Touriste) and Stronglight 49D, as well as other vintage models from Sugino and Nervar--and, of course, modern near-replicas from Velo Orange.

However, I'm not about to spring for another crankset.  Bespoke plans to make chainrings for cranks with other bolt patterns, including 110 and 130 mm.  If they can  replicate the cat pattern in 110, I'd go for it!

They also make "drillium" chainrings that mimic the ones of the '70's and early '80's and replacement dust caps for vintage Stronglight cranksets.  The rings are made to be used with multiple as well as single gears.

03 March 2015

When Does Width Matter?

The importance of tire width is one of the cycling world's long-running debates.

Because I came of age in the aftermath of the '70's Bike Boom, I was inculcated with the notion that, in the immortal words of Robert Browning, "less is more".  That meant, among other things, that a lighter bike is always a better bike.  Not surprisingly, the minimalist aesthetic ruled:  What other decade could have brought us the Huret Jubilee or SunTour Cyclone (first version) rear derailleurs--or drillium?

(The Jubilee is so minimalist that the version with drilled-out cages almost seems extreme.  Talk about "less is more"!)

So, it makes sense that I would also grow up with the idea that narrower tires would make your bike faster.  All other things being equal, they do, because less rubber on the road means less resistance.  But I've since come to learn that riding too narrow a tire for your purpose can actually slow you down if it's making you ride more cautiously--or simply wearing you out with the extra shock and vibrations it transmits.

If a very narrow tire can defeat the a cyclist's purpose in riding it, then I think it's fair to ask whether too wide a tire can do the same.  Or, more precisely, is there a point at which any additional tire width doesn't add traction, resiliency or durability?

Over the years, I've come to the conclusion that on loose, powdery snow, a tire's tread or compound makes more difference than its width.  On the other hand, on deep, heavier-packed snow, knobby mountain bike tires are a better idea.  

But what about ice?  My guess, based on limited experience, is that a wider rear tire might help with initially gaining traction, but once the bike is moving, whether you slip or fall isn't going to have much to do whether you're riding 700X23 or 26"x2.5 tires.  If anything, I think having studs or spikes on your tires will do more than anything else to help you across a glacial expanse.  


From Jonny Cycles

Hmm...It looks like someone might have actually tested my hypotheis.  I wonder what his conclusion might be.


02 December 2014

My First Piece Of Jewelry: The Huret Jubilee Derailleur

When you get to be my age, you realize that had you saved the stuff you wore in your youth, you could sell it today as "vintage."  It seems that some people are trying to do the same thing with bike parts.  I find myself shouting things they don't teach you in French 101 whenever a Craigslist or eBay listing refers to a Simplex Prestige derailleur as "rare" or "vintage."

Whenever I see that testament to French plastic technology--or the Campagnolo Gran Turismo with its scimitar-like cage or the Huret Luxe Super Touring, which looked like a disjointed crane's neck made from steel plates--I think, "They don't make them like that anymore--Thank God!"  If those things are "vintage", I'm all for the present and the future

But there are a few no-longer-made components that can be called "vintage" without making me wince.  Such parts are, of course, sought out by collectors or even still used on everyday riders.  Such parts were not only "good for their time" but still are valid today because they have some feature or another that today's stuff lacks.





Sometimes that factor is aesthetic.  Let's face it:  Most bikes and parts from the past look better than almost anything made by anyone besides a custom builder or small-scale manufacturer today.  I admit that there are some things I own and ride for that reason alone.  But some of those same bikes and parts--and others--are designed in ways that are more practical or versatile, or simply "made better", than what you can buy today.


And, believe it or not, some old parts are actually lighter. A case in point is the Huret Jubilee rear derailleur.





I actually owned and rode two--a short-cage and a long-cage version-- for a number of years.  I raced, toured and even did some "rough stuff" on them.  And I even took a tumble or two on them.





My short-cage Jubilee adorned my Cannondale racing bike for a few months.  Then it graced my Colnago Arabesque--on which I raced and trained and did a number of long rides--for another half-dozen years.  I rode the long-cage version for a couple of years on a Bianchi that I turned into a light tourer, then on my Miyata 912.


On all of those bikes I shifted the Jubilee with what is, to my mind, the best non-indexed lever ever made: the Simplex retrofriction.  And I had the "teardrop" version--to my eye, the prettiest shift lever in history--on the Cannondale and Colnago. 





With those levers, the Jubilee shifted quite well, especially given the standards of the time.  It wasn't quite as easy or accurate as the SunTour Cyclone (or, for that matter, anything in SunTour's "V" series).  But I actually preferred the Jubilee to any other manufacturer's (besides SunTour's) top-of-the-line derailleur.  For one thing, it shifted as well--or, at least, not noticeably worse than--the Campagnolo Record series, Simplex LJ or Shimano Crane.  To be more precise, the Jubilee shifted about as quickly and perhaps a bit more accurately, and definitely more smoothly, than any of those mechanisms.


I bought my first (short-cage) Jubilee from Frank Chrinko, the proprietor of Highland Park Cyclery, where I worked for a time.  He thought well of them (and used the Success, Huret's other high-end derailleur) and said he hadn't noticed any problems among the (admittedly few) customers who used them.  On the other hand, I heard horror stories about how if you looked at it the wrong way, it would explode into a million little pieces.  Such fears, I found, were greatly exaggerated: Both of my Jubilees survived falls and continued to work as well as they had been working.





I think that Jubilees lasted longer than many people expected precisely because they were so minimalist:  There weren't as many ways it could be struck or snagged.  That is the reason why, interestingly, a few early mountain bikers and some cyclo-cross riders used it.


The Jubilee also holds the distinction of being one of the few rear derailleurs that was completely disassemblable for cleaning and maintenance.  Huret actually offered spare parts, though they weren't easy to find (at least in the US).  I'll admit that, once disassembled, it wasn't the easiest thing to put back together, especially if you didn't have a diagram (which was even harder to find than the spare parts).  


So how did the Jubilee get its name?  Huret was founded in 1920 and in 1970 decided to celebrate by creating the lightest derailleur ever made.  They succeeded--the short-cage version weighed only 140 grams (the long-cage version weighed 157).  Ironically, the later "drillium" version was five grams heavier!






The Jubilee was first introduced in 1972 (the same year as the Simplex Super LJ and SunTour VGT) and found its way to the US a couple of years later.  The Motobecane Grand Jubile came equipped with it and other high-quality French components; so did the Raleigh Competition.  In 1974-5, Raleigh's two-steps-up-from-entry-level Super Course, with a frame that had straight-gauge Reynolds 531 in its main tubes, came with a version of the Jubilee that fitted to the non-forged dropout with a "claw" hanger.  From what I heard in bike shops at the time, Raleigh was trying to offer the lightest bicycle available at its price point (about $175 at the time), and the Jubilee shaved those few grams that gave the bike its edge over whatever the next-lightest bike was in its price category.






Sachs took over Huret in the early 1980s and continued to produce the Jubilee until the end of the decade.  Later versions bore the Sachs-Huret logo, and later simply "Sachs", in the black-and-gold badge that sported the Huret name in the familiar cursive lettering for so long.

Late in the 1980s, Sachs (which had also taken over French component makers Maillard and Sedis) became part of SRAM.  It seems that around that time, the Jubilee was discontinued as all of the SRAM-Sachs derailleurs were modeled after the Shimano models with slant paralellogram bodies and two sprung pivots.