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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 03-21-11, 03:17 PM   #76
BoozyMcliverRot
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When will this thread end?
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Old 03-21-11, 04:30 PM   #77
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When they see a CF track bike being ridden on the track, they assume it didn't explode because it was on smooth ground.

I saw reruns of the 2010 track championships the other day, and the only frame explosion that happened was due to it being ran over..it was still pretty impressive.

You guys seem to forget that any aluminum tube that is dented will fail at that point eventually. Infact, all Al frames will fail at some point, it's one of the downsides to the metal. Once you get into the high end, thin walled Al frames they are much, much more prone to failure due to damage than CF.

The only downside to CF is that it can fail from damage you can't see, where most Al frames or parts fail from damage that is usually visable if you take the time to inspect your bike. I wouldn't use CF cranks because I can get Al ones that are just as good for much less, but there is no way you're going to break them with your epic quads.

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Old 03-21-11, 04:42 PM   #78
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I saw reruns of the 2010 track championships the other day, and the only frame explosion that happened was due to it being ran over..it was still pretty impressive.
Yeah, that was Shelly Old's BMC Track Machine. She went head over heels when a girl slid down the track in front of her. No race-spec frame could have survived that. Did you notice how the carbon fiber Mavic Io (5 spoke) and Comet (disc) wheel stayed intact?




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Roadies can run tempo all year as that's what humans were designed for. If you want to be a cheetah, lay around and lick your paws more.
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Old 03-21-11, 04:47 PM   #79
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The best part about that clip is watching someone run her head over(!) and she just sits up with a suprised look on her face.
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Old 03-21-11, 04:55 PM   #80
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The girl that started the crash got away without crashing.

At the 0:20 mark you'll notice a woman go sharply up-track (up the track) and a second woman follow her. That second woman isn't following her on purpose. Her front wheel is overlapped with the first woman. The second woman is holding on for dear life and eventually falls starting the chaos.

The move by the first woman is unusual and totally ill-advised and unexpected. Every time I've seen that move it caused (or almost caused) a wreck.
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Roadies can run tempo all year as that's what humans were designed for. If you want to be a cheetah, lay around and lick your paws more.
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Old 03-21-11, 05:03 PM   #81
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Wow, even at world-class level, riders still move up track without caution.
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Old 03-21-11, 05:13 PM   #82
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That's why I have no desire to race on a track. On the plus side, a wreck at that speed on a track won't sandpaper off your face like asphalt will...
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Old 03-21-11, 05:20 PM   #83
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Wow, even at world-class level, riders still move up track without caution.
Yup. It was a bone-head move.

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That's why I have no desire to race on a track. On the plus side, a wreck at that speed on a track won't sandpaper off your face like asphalt will...
Don't let videos/pics of dramatic wrecks scare you. There are videos of bikes vs cars and those don't keep you from riding on the street do they? Wrecks are actually very rare on the track, but they get lots of publicity.

Stupid moves happen all the time. This weekend I was riding behind 2 cars and a two girls and a guy were waiting to cross the street. The girls clearly saw both cars and myself. They waited patiently as the two cars went by then promptly darted out in front of me almost causing me to pancake both of them. I gave them an ear full. The dude was still on the curb waiting and watching. I thanked him for not doing what they did.

That US rider in the video above raced the very next day.
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Roadies can run tempo all year as that's what humans were designed for. If you want to be a cheetah, lay around and lick your paws more.
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Old 03-21-11, 05:48 PM   #84
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i deadlift like 6 something squat 5 something and bench like 350. i can leg press a grand no problem.
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Old 03-21-11, 06:05 PM   #85
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i deadlift like 6 something squat 5 something and bench like 350. i can leg press a grand no problem.
you are a cyclists wet dream
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Old 03-21-11, 06:19 PM   #86
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That's why I have no desire to race on a track. On the plus side, a wreck at that speed on a track won't sandpaper off your face like asphalt will...
Track is safer than road. You don't have corners, loose gravel, other road hazards, no cars (not all races are on closed courses) and riders seem more predictable. I was only cat 5 (10 races needed to upgrade) and I had seen several crashes. My friends that race track have hardly any crash stories to tell me

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Old 03-21-11, 09:06 PM   #87
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About carbon.

Obviously anything can break when it's stressed beyond design intent. A steel track frame will not be a strong as a carbon mountain frame because they are designed differently. A track wheel used for loaded off-road touring might break, no matter what it's made of. And a properly designed and constructed bike, used according to it's design intent, will not break weather it's made of carbon, alu, steel, or bamboo.

That said, all these materials will behave differently when you go outside the design intent. Over stress carbon, and it will probably break. Over stress steel and it will permanently bend. Over stress aluminum and it will bend unless it's heavily fatigued in which case it can crack. That's the key difference. A while ago in a crash I bent my steel fork, the bike was still ridable. Carbon wouldn't have bent, it would have broken, and the bike would not have been ridable.

Carbon is also much more sensitive to invisible cracks/defects. If I ever drop my U-lock on my top tube, I will look and see if there is a dent. If there is a big dent with sharp edges, I probably will not ride my frame. If I drop my U-lock on a carbon top tube, I would have no way of knowing whether or not there is an invisible crack that could lead to sudden failure.

These two things (failure mode and sensitivity to invisible defects) are what make many say steel is more safe, particularly on a bike that will be stressed beyond what the designers may have planned for.
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Old 03-21-11, 10:03 PM   #88
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When will this thread end?
never ever. this is going to become a new sticky

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you are a cyclists wet dream
powerlifter first, cyclist second. lol.
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Old 03-21-11, 10:44 PM   #89
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The best part about that clip is watching someone run her head over(!) and she just sits up with a surprised look on her face.
That was my reaction! Helmets FTW, holy crap.

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you are a cyclists wet dream
Of course. Especially since he's "cyclist second."
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Old 03-21-11, 11:06 PM   #90
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i mean i bike daily, but i've been lifting weights for far longer then i've been into bicycles.
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Old 03-21-11, 11:18 PM   #91
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Just take some pictures of your quads in comparison to a squirrel.
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Old 03-23-11, 05:07 PM   #92
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This should pretty much settle all of this.

Gregory Bauge on carbon cranks during the Team Sprint finals in the 2010/2011 World Championships. Team Sprint is the event from the Standing Start video. The most rigorous event in track cycling.:




Oh, and he and his team won the World Championship today, by the way. I'm sure he mashed pretty hard on them
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Roadies can run tempo all year as that's what humans were designed for. If you want to be a cheetah, lay around and lick your paws more.

Last edited by carleton; 03-23-11 at 11:40 PM. Reason: Name corrected to Gregory Bauge
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Old 03-23-11, 07:10 PM   #93
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squirrel legs

my leg (****ty webcam photo)
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File Type: jpg Photo 370.jpg (90.8 KB, 45 views)

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Old 03-23-11, 10:15 PM   #94
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Hot photo, bro.
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Old 03-23-11, 11:04 PM   #95
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the lols never stop on chris hoys legs
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crabon/campy/rapha/roadie-bro.

next step is recumbent.




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Old 03-23-11, 11:18 PM   #96
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Well those legs are just more tanned, shaved, and well lit. lol.

But that video gave me complete confidence in carbon track cranks.

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Hot photo, bro.
thanks bro!
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Old 03-23-11, 11:28 PM   #97
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skinsuit or it didn't happen

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crabon/campy/rapha/roadie-bro.

next step is recumbent.




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Old 03-23-11, 11:43 PM   #98
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I was mistaken, the rider is Gregory Bauge. Here is the footage from today. The Team Sprint is around the 5 minute mark. Bauge is the lead-out guy.


Bauge is the guy on the top of podium "1" on the right side with silver shoe covers:
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Roadies can run tempo all year as that's what humans were designed for. If you want to be a cheetah, lay around and lick your paws more.

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Old 03-23-11, 11:52 PM   #99
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^ FFFFUUU, video not available in Canadia!

I thought first picture was Sierau but realized he wasn't as dark.

Carleton, is there anywhere I could watch live videos of UCI track races?
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Old 03-23-11, 11:55 PM   #100
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Those Germans look so unemotional. I guess second is first to lose
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