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bouncing ?

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Old 03-14-07 | 02:56 PM
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bouncing ?

when running high cadence, well, high for me, around 140 + rpm, i start to get saddle bounce.
I'm looking for any tips as to how i can NOT bounce.
what will smooth it out, considering i'm on 170mm crank arms and my saddle height feels about spot on.
when sprinting, even though i have the juice (energy) available, the bouncing really makes any extra effort quite unstable.
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Old 03-14-07 | 02:58 PM
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i lowered my saddle just a tiny tiny bit. that helped a lot.

i also worked on it, a big part of it is technique. i've been spinning around all winter in 42-17 and it helped a lot.
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Old 03-14-07 | 03:06 PM
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I have always tried to only pull up rather than pushing when spinning fast, it seems to help me
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Old 03-14-07 | 03:29 PM
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pull your ass into the saddle and focus on keeping shoulders steady
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Old 03-14-07 | 03:39 PM
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It's just practice really. Ride down a lot of hills and everything will smooth itself out eventually.
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Old 03-14-07 | 03:43 PM
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circles.
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Old 03-14-07 | 03:57 PM
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Originally Posted by Eatadonut
circles.
+1

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Old 03-14-07 | 04:16 PM
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you are pedalling with your whole body. concentrate the movement to your legs
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Old 03-14-07 | 04:22 PM
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heel down on the downstroke, heel up on the upstroke. well, let me rephrase...push with your heel down so you use your calf muscle. when you hit 6 o'clock, pull your foot up with the muscles in your shin (your upper legs will get involved, too)...your heel will come up, hence when i said "heel up" etc. overemphasizing raising the heel on the upstroke is called "ankling", according to sheldon, who also adds that this can cause ankle pain.

anyway, i tried to go into detail about the basics of proper spin technique cuz "learn to spin" isn't going to help you learn to spin.

now, go sprint, ride down some hills, whatever. learn to spin and you'll stop bouncing in your seat.
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Old 03-14-07 | 04:33 PM
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i've been told that trying to keep your arse on the saddle as much as possible helps. pretend its glued to the saddle
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Old 03-14-07 | 05:10 PM
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Originally Posted by lbthomps
I have always tried to only pull up rather than pushing when spinning fast, it seems to help me
This is generally what I find myself doing.
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Old 03-14-07 | 05:24 PM
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i think everyone experiences it when they first start riding fixed. it kinda just disappears as you get used to riding fixed.
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Old 03-14-07 | 05:50 PM
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ah, ok...
I figured after doing nearly 1000 miles now on the fixed it might be something technical.
If its just a technique thing, I'll have to practice.
Of course, at lower RPMS its easy to believe you are in fact pedalling in "circles", but at higher RPM's, that assumption is obviously wrong in my case, and possibly many others who believe they are achieving a perfectly circular pedal stroke.
Of course, i suffered at 100 RPM before, but 140 + is kinda quick don't ya think ?
people have told me 200 RPM is possible in short bursts, but i've also been told to watch for slowing down from such an effort. As i'm unlikely to reach such high spin speeds just yet, I'll have to take their word for it.
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Old 03-14-07 | 06:05 PM
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Originally Posted by lbthomps
I have always tried to only pull up rather than pushing when spinning fast, it seems to help me
+1.
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Old 03-14-07 | 06:24 PM
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well, ya gatta gas, brake, gas, brake, but it only workws with yo stunna shades on.


work on your cadence. put some granny gears on another bike and you'll notice it goes away.
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Old 03-14-07 | 06:34 PM
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woah, gas brake dip on a bike?

I've been trying to figure out how to ghost ride my bike, I mean, I'm trying to let casper drive.
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Old 03-14-07 | 06:40 PM
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Originally Posted by lbthomps
I have always tried to only pull up rather than pushing when spinning fast, it seems to help me
That works for me too. You gotta go with the pedals and not get pushed around by them.
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Old 03-14-07 | 11:37 PM
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While spinning, attempt to pull up on the crank bearing.

One of Lance Armstrong's coaches described it as spinning as though riding over red hot pavement and trying to pull one's feet up.

One still spins a full 360 degree circle, but adusts the forces as if to keep an upward pressure on the crank bearing.

If one wants to spin faster, he should pull up on the crank.

If he or she wants to spin slower, he should put more weight on the crank.
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Old 03-14-07 | 11:43 PM
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Just go merckx on your **** and never let up.
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Old 03-15-07 | 12:55 AM
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What helps me smooth out when I am spinning fast is not focusing on pushing down or pulling up. I actually focus more on "scraping" at the bottom of my stroke and pushing over the top. The up and down part of the pedal stroke seem to work themselves out when you do it that way.

Unfortunately good spinning is just one of those things you have to do until you get good. I recommend flat ground with a gear you can spin, or small hills to start with. You want to be in control, not just hanging on for the ride.
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Old 03-15-07 | 01:06 AM
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Originally Posted by Mr. Clean
I actually focus more on "scraping" at the bottom of my stroke and pushing over the top.
I have had difficulty with "pushing over the top," tending to push too late.

In another thread, Placid _______ (forgot his handle) suggested visualizing myself as directing my knees towards my handlebars.
Well, my knees won't actually go towards my handlebars, but visualizing this as something I want to do has helped me bring in the "push over the top" earlier.

The more I pay attention to my spin, the more complex it gets, with different spin strategies in different situations, even steeper or less steep hills.
Just this last month I have learned a new way of braking by back pedaling on hills, and it takes much less strength and works so much better than what I did before.
What will I discover next month?
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Old 03-15-07 | 02:01 AM
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Originally Posted by Ken Cox
While spinning, attempt to pull up on the crank bearing.

One still spins a full 360 degree circle, but adusts the forces as if to keep an upward pressure on the crank bearing.

If one wants to spin faster, he should pull up on the crank.
I'll try that today on the road.
Just tried it on the static trainer, feels better.
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Old 03-15-07 | 04:14 AM
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I have find the pulling up / scraping method. I try to pedel in a circle but never pushing down. This means I am all ways using my cleat on my shoe to do the pedaling so on the down ward stroke I am pushing forward with my shoe resulting in my toe poining down slightly for the first half of the downward stroke then dulling backwards on the second half of the downwards stroke. Reverse this for the upwards stroke whilst pulling your self down into the saddle. This means you are never pushing up so there is no force bounce you out of your saddle. I don't know exactly how fast I have got with this method but I estimate 140+ not too bad for my slow ass!
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Old 03-15-07 | 04:39 AM
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Put as much of your weight on your saddle as possible, and the rest on your bars. Relax your ankles and spin as if you're trying to keep your feet a couple of degrees ahead of your pedals
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Old 03-15-07 | 06:01 AM
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Originally Posted by myfish
people have told me 200 RPM is possible in short bursts, but i've also been told to watch for slowing down from such an effort. As i'm unlikely to reach such high spin speeds just yet, I'll have to take their word for it.
Some track cyclists can maintain that kind of spin for a few seconds. In three lap races where positioning and all out acceleration, a low gear is necessary. I beleive Ekimov used to jump the front of a pack with a mile or so to go, spinning 180 plus the whole time. Insanity.... pedaling three times a second
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