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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 11-05-09, 11:23 PM   #1
the_don
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→→→!!The how fast can you spin thread!!←←←

Saw this video of Japanese Keirin riders practicing sprints. Insane cadence!

http://www.youtube.com/watch?v=sVbwngNoHm0

How fast can you spin? Outrageous claims video proof please!

FTR. I can only max out at about 120-130 I think.
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Old 11-05-09, 11:31 PM   #2
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i walk my bike everywhere so people can see it's fixed. i dont know what a cadence is. it's a company right?
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Old 11-05-09, 11:33 PM   #3
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FTR. I can only max out at about 120-130 I think.
here's 120 or so.

http://www.youtube.com/watch?v=M_fyjwUVi3I

i'm pretty sure you can go faster than that. i mean, if you think about it logically, 120rpm is 2 pedal strokes per second. that's not fast by any stretch.

Last edited by luno-pdx; 11-05-09 at 11:42 PM.
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Old 11-05-09, 11:40 PM   #4
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i'm kinda curious to see how fast i sprint on rollers. it feels decently fast, but i don't have a video camera to see.

i certainly don't look as calm and smooth as the guy in that video though. subtract speed, add shaking, pain, sweat, and fattiness and you have me haha
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Old 11-06-09, 12:00 AM   #5
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My ratio is 44/18. My max speed has been 28.5mph, which works out to 146rpm.
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Old 11-06-09, 12:15 AM   #6
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I max out at around 140 but it's not very smooth.
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Old 11-06-09, 12:17 AM   #7
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fastest i've gone is 34mph with 50/18 gearing. duno what that cadence is.

ok so, it's about 155rpm.

not sustained for very long.

Last edited by Cy Trivialities; 11-06-09 at 12:23 AM.
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Old 11-06-09, 12:21 AM   #8
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http://www.bikecalc.com/cadence_at_speed
166RPM
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Old 11-06-09, 12:28 AM   #9
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My best (not on rollers, but on a hill) was 192rpm, give or take. I hit a max speed on my computer of 42.42mph on 48x17 gearing. I might have sustained that amazitude for all of about 20-30 seconds. But hey, that puts me in the lead so far, right?

Last edited by LoRoK; 11-06-09 at 12:41 AM.
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Old 11-06-09, 12:32 AM   #10
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52kph on a 46/16 143
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Old 11-06-09, 12:40 AM   #11
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164 rpm. 35 mph on 46/17. big hill.
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Old 11-06-09, 12:45 AM   #12
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Damn that guy spins so smooth.
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Old 11-06-09, 12:50 AM   #13
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Having no speedometer on my bike, I can only guess that my top speed is around 30ish. According to that chart, I think that puts me around 140. I would like to find out more precisely, but I don't have any means.
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Old 11-06-09, 12:55 AM   #14
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69.
His bike is #69.
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Old 11-06-09, 01:12 AM   #15
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I got a computer a couple weeks ago, since then I have hit 36mph down some hills at 66.6 GI. On the flats I have sprinted to a little over 30 mph. Those weren't very long sprints.


No video, no camcorder



[edit] ok so with http://www.bikecalc.com/cadence_at_speed

I've gone around 176rpm, but that's where my legs begin to feel like noodles. At least now I have a reason, other than masochism, to climb the big hills on the fixed gear.

Last edited by hairnet; 11-06-09 at 12:21 PM.
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Old 11-06-09, 02:08 AM   #16
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I didn't say I was a good spinner, but I aspire to be good. I have just been working on average speeds, so riding a long distance with a pretty good cadence. I "cruise" around 90-95. I haven't tried pushing my cadence for a while. And can't at the moment because I am waiting for my new bike to come.
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Old 11-06-09, 05:38 AM   #17
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I don't have a computer because all it is going to tell me is how slow I am
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Old 11-06-09, 06:27 AM   #18
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I don't have a computer because all it is going to tell me is how slow I am
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Old 11-06-09, 07:17 AM   #19
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ive got at least 80rpm.
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Old 11-06-09, 07:47 AM   #20
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there was a top speed thread a while back kind of like this.

I peak at 189. 48x17t @42mph
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Old 11-06-09, 07:55 AM   #21
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Man... I need a camera or computer cause I've been wondering this about myself for a while now. I'm guessing not much faster than 120 ... :/
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Old 11-06-09, 08:23 AM   #22
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42/17 I've hit 30mph over 150rpm though not smooth at all. My legs were kind of dragged along for the ride. For me right now anything over 120rpm isn't controlled
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Old 11-06-09, 09:55 AM   #23
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Originally Posted by the_don View Post
Using this link, at 46x17 I've done 39.5mph, which looks to be just south of 189rpm. I'm almost daily hitting 30-33mph (due to some big rolling hills across Toronto) on my commute now, which is 141rpm.

Though I changed to 46x16 last week, I can't remember what my cadences have been in those hills.
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Old 11-06-09, 11:36 AM   #24
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I've gotten to about 180-190 on the rollers before. On my big ring I was doing around 40 mph. I could only hold that for about 30 sec them I was cooked.
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Old 11-06-09, 01:40 PM   #25
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I can probably hit 115 rpm on the flats in Chicago without wind assist on my 48x17. I usually cruise at 85 or 90 rpm, and I've never taken a fixie on a big hill so I have no idea. I feel like these crazy numbers you guys are getting on hills aren't exactly the question since your legs are along for the ride at however fast the inertia of the bike bombs down the hill.
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