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Clydesdales/Athenas (200+ lb / 91+ kg) Looking to lose that spare tire? Ideal weight 200+? Frustrated being a large cyclist in a sport geared for the ultra-light? Learn about the bikes and parts that can take the abuse of a heavier cyclist, how to keep your body going while losing the weight, and get support from others who've been successful.

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Old 08-18-09, 07:31 AM   #76
Barrettscv 
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Originally Posted by maddmaxx View Post
That would be 60 to 70 KPH on the flats during the ends of the sprint stages!!!!

You might find these articles interesting.

the flying 200-meter world record, which is currently held by Canadian rider Sam Whittingham with a speed of 81 mph flat. That's right, 81 mph on a bike, on flat ground.
http://www.wired.com/culture/lifesty...ikerecord_0330

152.2 Miles per Hour speed record at the Bonneville Salt Flats near Wendover, Utah on July 20, 1985.
http://www.canosoarus.com/08LSRbicycle/LSR%20Bike01.htm
The first is a fully enclosed aero bike.

The second is a cyclist drafting in a pace vehicle was modified by adding a large tail fairing to a Streamliner. The fairing keeps the wind off John and reduces the aerodynamic drag he is pedaling against to near nothing.
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Last edited by Barrettscv; 08-18-09 at 07:36 AM.
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Old 08-18-09, 08:25 AM   #77
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Originally Posted by Barrettscv View Post
The first is a fully enclosed aero bike.

The second is a cyclist drafting in a pace vehicle was modified by adding a large tail fairing to a Streamliner. The fairing keeps the wind off John and reduces the aerodynamic drag he is pedaling against to near nothing.
It was used as an example of how fast one could go without "parts flying off".
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Old 08-18-09, 08:32 AM   #78
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It was used as an example of how fast one could go without "parts flying off".
Well that is hardly your run of the mill road bike.
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Old 08-18-09, 09:00 AM   #79
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It was used as an example of how fast one could go without "parts flying off".
I did 45.4mph this morning on a frankenbike singlespeed.
- 1988 Trek 400 frame/fork salvaged from a dumpster, original headset (overhauled)
- rolling on 1991 Wolber T410 Alpine hoops, front still original lacing to 105sc hub, rear rebuilt on IRO high flange fix/fix
- 1991 105sc crank, front brake and levers.
- 1988 stock rear brake
- new bits and pieces as necessary; bars, stem, saddle, etc.

No parts flying off of it so far, and I beat this bike like it owes me money. Commuter, path racer, frequently take it off the pavement on packed-lime or hardpack dirt roads, did 5 miles on the equestrian trail with it last week just to see if I could.

I can't imagine a speed one could reach that would cause spontaneous loss of parts; although I did go fast enough once that the adhesive for my helmet mirror gave up and I lost the whole thing.
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Old 08-18-09, 10:04 AM   #80
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Reading Tom's post about single speeds, I remembered seeing a guy on a single-speed bike without a freewheel mostly use his feet to slow down. Since the pedals move as you go forward no matter what, you can use your legs to slow down.

That is not good enough, sometimes. I've seen guys do this deliberate side-slide move to slow down on single speed while going downhill as well. The guy that I asked, said that if he did not use that technique on that hill, the pedals would overpower him, and he can't keep his feet on the pedals at all. Learning how to DELIBERATELY slide with control like that? Scary-looking move, to me.


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Old 08-18-09, 10:18 AM   #81
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At any rate, be careful. I rode in this ride and right by the scene of this unfortunate tragedy:

http://articles.lancasteronline.com/local/4/241122
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Old 08-18-09, 10:24 AM   #82
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Reading Tom's post about single speeds, I remembered seeing a guy on a single-speed bike without a freewheel mostly use his feet to slow down. Since the pedals move as you go forward no matter what, you can use your legs to slow down.

That is not good enough, sometimes. I've seen guys do this deliberate side-slide move to slow down on single speed while going downhill as well. The guy that I asked, said that if he did not use that technique on that hill, the pedals would overpower him, and he can't keep his feet on the pedals at all. Learning how to DELIBERATELY slide with control like that? Scary-looking move, to me.


What you're talking about is a fixed gear; a singlespeed has a freewheel. I ride both fixed and single on the hills around here, and while I have the ability on most hills to control my speed via resistance on the fixed cog I prefer to use my brakes because it's less wear & tear on my knees, and I don't like burning through tires twice a month from skidding.
Skidding/skipping to scrub some speed isn't really a scary manouver if it's just to lose a bit a forward momentum. I've had to do it when cars cut me off from a parking lot, or make sudden stops or lane changes and I need to slow down and get out of the way in a hurry. Lock up the back wheel, throw some english on the back-end of the bike and swing it around, unlock the wheel and you're rolling slower in a whole new direction. Not my preferred method, but it has its uses.
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Old 08-18-09, 10:28 AM   #83
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Yeah, the bikes that I'm talking about are usually mid-80's road bikes set up with a fixed gear. It seems to be pretty popular around here to do your own conversion of an old bike, and to have NO BRAKES AT ALL. I can see that not being such a big deal if you ride really flat areas, or on the track, but riding without brakes to commute in traffic, and to ride on rolling terrain with traffic lights at the bottom of biggish hills seems nuts to me.


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Old 08-18-09, 10:43 AM   #84
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The first is a fully enclosed aero bike.
To be completely accurate, that 's a fully enclosed recumbent aero bike.
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