#91
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randonneur
Frank Krygowski writes:
On 5/28/2018 4:52 PM, AMuzi wrote: One nice feature of newer panniers is positive lock: https://lonepeakpacks.com/index.php/...ier-hooks.html so they won't bounce off at a pothole. Many similar designs. I had occasional trouble with panniers coming unhooked. While I don't yet own any with positive locks, the concept is appealing. Lone peak retailers will sell you the hooks alone. I have a set laying around somewhere that I bought to fit a second bicycle & rack (they have two sizes). Most of my experience has been schlepping one back and forth to work, in which service they have worked very well. |
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#92
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randonneur
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#94
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randonneur
On Sun, 27 May 2018 09:48:48 +0200, Emanuel Berg
wrote: Tim McNamara writes: Great only too expensive, especially compared to the Fuji and in particular the amount of money in my wallet. Why do they do randonneurs with 32 tires anyway?! Comfort, for one thing. The standard brevet lengths are 200, 300, 400, 600, 1000 and 1200 km. All with time limits, checkpoints, etc. The extra comfort afforded by the larger tires becomes very helpful after 8, 10, 50 hours in the saddle. Ha ha Definitely. But why not 40 or 47 tires then? They are not that much slower/heavier or less aero than 32 and even more comfortable. Especially with a loaded bike I think 32 is too thin. But if that's the way it is I'm not letting it stop me from going, of course. Many people have toured all over the world on 700 x 23 or close tires. Suboptimal to my thinking, but then it depends on the load you are carrying. Igor Kovse, probably the chief evangalist of ultralight touring, rides a bike that fully loaded weighs less than many people's unloaded bikes. He's taken that setup through the Himalayas, etc. But if you have 50 lbs of gear, using 23 mm tires is just making like hard for yourself. Tire width is a center of discussion in the randonneuring world. 700 x ~30 versus 650B x ~40-45 versus 559 x 50+. Of course, that world is a tiny handful of riders, relatively speaking. The current trend is towards thinking wider cushier tires are a net performance benefit. Of course, in that crowd "wider" is often considered to be 40+ mm, not 25 mm as in the bike racing crowd. There is a tradeoff with weight. A 44 mm wide tire in 700C weighs more than in 650B or in 559 BSDs. So the bigger hoops tend to be shod with a bit narrower tire and teh smaller hoops tend to have wider tires. It's fairly easy to end up with very similar overall diameter wheels with the smaller tires on the bigger rims and the bigger tires on the smaller rims. The wheels' relative interia ends up being pretty similar. 650B x 40+ was the standard for brevet riders until the early to mid 50s when the fastest riders were riding PBP on what were basically racing wheels. Improved pavement and improved tires were a big part of that- until the post-war reconstruction of Europe, it would not have been a surprise to find 1/2 or more of a brevet on dirt roads or gravel. Post-war Europe upgraded a lot of rural infrastructure much like the Eisenhower interstate system, to make sure that troops and materiel were readily transported in defense of the nation. Narrower tires were believed to be faster, a common notion today, and smoother pavement allowed the use of those tires and a perceived benefit. A few decades ago, Jobst Brandt and the Avocet folks published data suggesting that narrower = faster wasn't necessarily so. More recently, Jan Heine has gone after that notion with a vengeance in his publication and his product line (Compass Cycles) which makes high quality high performance wide bike tires aimed primarily at the brevet type or adventursome rider. |
#95
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randonneur
On Mon, 28 May 2018 11:06:49 -0700, Mark J.
wrote: * Notes: I use "touring bike" to mean a bike intended for multi-day trips carrying camping gear. I use "randonneur" or "rando bike" to mean a bike intended for brevets - 200 to 1200 km mostly self-supported rides carrying the bare minimum for survival and ride completion. Even there the standards are widely variable. My buddy Doug did a 600 km brevet on a racing bike with 23 mm tires, a patch kit and tire lever and about $20 in cash. He was perfectly happy with that. I am not such a minimalist. I'd have had a handlebar bag with two spare tubes, patch kit, a compact tool kit (fits in an Altoids can but is surprisingly complete), maybe a rain jacket, some food, money and ID, cell phone... and my bike has fenders, generator lighting, wideish tires, etc. |
#96
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randonneur
On Sun, 27 May 2018 08:49:56 -0500, AMuzi wrote:
Back when the Earth was young, The Ancients discovered that 32h front/40h rear is as close to perfect as one might imagine. Adds some niggling cost and therefore abandoned. As a tall, heavy guy I thnk that'd be about right. I have problems with any rear wheel with less than 36 spokes if it has 7 or more cogs (7 x 135 mm wide is not a problem, very low dish wheel, but 7 or more with a 130 mm OLN is just bad design IMHO even though it is the standard. With 11 speeds, the OLN should be 140 or 145 mm unless the rider is under 120 lbs). |
#97
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randonneur
On 5/30/2018 1:02 PM, Tim McNamara wrote:
On Mon, 28 May 2018 11:06:49 -0700, Mark J. wrote: * Notes: I use "touring bike" to mean a bike intended for multi-day trips carrying camping gear. I use "randonneur" or "rando bike" to mean a bike intended for brevets - 200 to 1200 km mostly self-supported rides carrying the bare minimum for survival and ride completion. Even there the standards are widely variable. My buddy Doug did a 600 km brevet on a racing bike with 23 mm tires, a patch kit and tire lever and about $20 in cash. He was perfectly happy with that. I am not such a minimalist. I'd have had a handlebar bag with two spare tubes, patch kit, a compact tool kit (fits in an Altoids can but is surprisingly complete), maybe a rain jacket, some food, money and ID, cell phone... and my bike has fenders, generator lighting, wideish tires, etc. No provision for mountain lions? A rusty nail with matching rock for chain repairs? Gallon of fresh brewed beer? You're quite Spartan! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#98
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randonneur
On 5/25/2018 1:24 PM, Emanuel Berg wrote:
jbeattie writes: Touring bikes are common as fleas. Even the Trek 520 fits the bill. https://www.trekbikes.com/us/en_US/b...olorCode=black Up to 44C without mudguards. You would have to add CX levers and a dyno light. Great only too expensive, especially compared to the Fuji and in particular the amount of money in my wallet. Why do they do randonneurs with 32 tires anyway?! Doesn't make sense. Of course if using the randonneur as a daily commute bicycle it might make sense to put on tires that narrow. Otherwise, 700 x 35 would be the minimum. |
#99
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randonneur
sms wrote:
Why do they do randonneurs with 32 tires anyway?! Doesn't make sense. Of course if using the randonneur as a daily commute bicycle it might make sense to put on tires that narrow. Otherwise, 700 x 35 would be the minimum. 32 is too small IMO. If they put them on as the default choice on a bike marketed as a randonneur one would expect them not to do that. -- underground experts united http://user.it.uu.se/~embe8573 |
#100
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randonneur
Tim McNamara wrote:
Very interesting post! Tire width is a center of discussion in the randonneuring world. 700 x ~30 versus 650B x ~40-45 versus 559 x 50+. Let's see, 700 (here) is 700C or 622; 650B is 584; and, 559 is 559, right? If so, I think I'm in the 650Bx40 camp tho I don't mind 28" wheels (if 650B is 27.5"). Why not 622-40? 650B x 40+ was the standard for brevet riders until the early to mid 50s when the fastest riders were riding PBP on what were basically racing wheels. OK, so PBP is Paris-Brest-Paris but what is a "brevet rider"? A randonneur/randonneur rider? -- underground experts united http://user.it.uu.se/~embe8573 |
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