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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 06-12-07, 05:44 PM   #1
killyourself
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Saddle height and knee pain

i have been riding know for about 3 years and have been having knee pain lately.
I have change gear ratio and even put a brake.
Will Saddle height contribute to my pain??
What height are people riding.
Any suggestions on Saddle height.
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Old 06-12-07, 06:10 PM   #2
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Get yourself fitted, or ride around with a tool and make adjustments on the road until you find the best height for you. Generally you want to have the knee at a very slight bend when it's at the bottom of the down stroke if I remember right.
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Old 06-12-07, 06:19 PM   #3
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Quote:
Originally Posted by killyourself
i have been riding know for about 3 years and have been having knee pain lately.
I have change gear ratio and even put a brake.
Will Saddle height contribute to my pain??
What height are people riding.
Any suggestions on Saddle height.
This is a great link for this subject.

http://www.cptips.com/knee.htm
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Old 06-12-07, 06:20 PM   #4
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some people believe that there should be a slight bend in your knee when you're on you soddle and you have your heel on your pedal at the six o clock position.
mine is just a bit higher.
it hurts me to see people ride around that have an almost straight leg at the bottom of their stroke.
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Old 06-12-07, 06:36 PM   #5
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if you're too high and stretching on the bottom of the spin that's not good, but you shouldn't be bending your knee more than 90degrees.

i think the only real way to diagnose this is going to a sports med physician.
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Old 06-12-07, 09:18 PM   #6
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YES! My knees were killing me. I lowered my saddle and I have no knee pain now. Over extension is a bad thing.
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Old 06-12-07, 10:15 PM   #7
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put cranks at 6 and 12 oclock

mount bike

lean against a wall

heel of foot should just barely be able to scrape lower pedal

start there
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Old 06-12-07, 10:20 PM   #8
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entertain the fitter at your LBS and he might forget to charge
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Old 06-12-07, 10:38 PM   #9
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How can someone with that "forum name" ask a question in here at any time?

Isn't the answer so obvious that any posting will only get one continually repeated reply?

Your knees hurt? Well...(insert your screen name here).
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Old 06-13-07, 12:48 AM   #10
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This method worked for me http://sheldonbrown.com/saddles.html scrol down to saddle height
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Old 06-13-07, 01:16 AM   #11
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Quote:
Originally Posted by nayr497
How can someone with that "forum name" ask a question in here at any time?

Isn't the answer so obvious that any posting will only get one continually repeated reply?

Your knees hurt? Well...(insert your screen name here).


The forum name is a play on words du moss.
Hasn't anyone ever told you that you were crazy for riding a bike with only one gear that has no ability to stop pedaling.
They might have send your going to "killyourself"
Keys the name Killyourself on that Fing bike
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Old 06-13-07, 01:18 AM   #12
killyourself
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O yes my knee still hurts maybe i will killmyself
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Old 06-13-07, 01:19 AM   #13
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thanks to everyone with something that might help. besides killingmyself
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Old 06-13-07, 01:35 AM   #14
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Rule of thumb: set cranks vertical, sit on saddle straight, extend leg, keep ankle at 90°.Your heel (in shoes) should graze the pedal or dangle within 1" over it.
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Old 06-13-07, 01:56 AM   #15
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my bike has no ability to stop pedaling? holy ****, i really am on a death trap huh! and this whole time i thought skid stops meant the pedals lost their motion
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Old 06-13-07, 06:01 AM   #16
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whoa. you mean you CAN stop the pedals on these things while moving?!?!?
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Old 06-13-07, 06:07 AM   #17
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recently my saddle had slipped a bit, and i was feeling knee pain. realized what was up, raised the saddle, and have been a lot happier since.
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Old 06-13-07, 09:20 AM   #18
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Saddle too high or too low can cause knee pain. I use the sit on the bike and pedal with yr heels, and go for just a slight rock in the hips for the right height for me. Some say you should do it to the exact point that your hips don't rock but are about to, but that's much too low for me, and causes pain and makes me feel smooshed up.

I experienced for a copule days a titch of tightness and pulling on my knee on my shorter leg (everyone has a shorter leg, or at least exact symmetry is rare anyway) when I started back on training rides on actual terrain and hills, and only on my fixed bikes. In this case I think it was just out of shapeness, or at least unaccustomedness.
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Old 06-13-07, 09:27 AM   #19
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Well, in that case...I get it. Yes, kind of like "you are going to shoot your eye out."

See, I thought it was as in that stupid saying that for some reason too many people seem to use, which I find incredibly dumb. I just strongly dislike hearing people saying that to another person.

But, I hope your knees feel better soon. And please don't kill yourself getting the problem worked out
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Old 06-13-07, 09:52 AM   #20
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+1 to the sheldon Brown recommendation.

I find the best way to get the saddle height right is to keep raising it a little at a time until it is too high, then back off a bit. If your hips are rocking, if you feel you have to point your toes at the bottom of the pedal stroke you are too high. Back it off a little bit from there, and you will probably be perfect.
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Old 06-13-07, 10:03 AM   #21
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Quote:
Originally Posted by mattface
I find the best way to get the saddle height right is to keep raising it a little at a time until it is too high, then back off a bit. If your hips are rocking, if you feel you have to point your toes at the bottom of the pedal stroke you are too high. Back it off a little bit from there, and you will probably be perfect.
Yeah, I'm with mattface.

I remember in the Greg Lemond book him saying that most people ride with a saddle too low, but if you're already in the ballpark of the right fit by any of the above methods, raise it no more than 1/8", ride a couple of your normal medium length rides, and see how you feel after a couple days, then raise it again if seems you didn't have to adapt at all - keep doing that until you feel like it's just a tiny bit too high, then back off 1/8". His specific recommendation was that saddle height requires adaptation from your entire body, and you can't at all tell if it's right or not without lots of miles in terrain you normally ride - unless you're waaaaay off, in which case start again with the standard methods.
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Old 06-13-07, 11:19 AM   #22
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Quote:
Originally Posted by piwonka
some people believe that there should be a slight bend in your knee when you're on you soddle and you have your heel on your pedal at the six o clock position.
mine is just a bit higher.
it hurts me to see people ride around that have an almost straight leg at the bottom of their stroke.
Long ago I used to ride a saddle too high (how poetic), but quickly leanred that there is such a thing as a too much stretch. I have tonote, though, that my knees aren't perfetly straight, I have a bend (towards the "o" shape), and this might be a contributing factor. You "straight" people have always been a puzzle to me

To the OP: on Sheldon Brown's legendary website you will find this exhaustive article on seat positioning. It's a must read:

"You never know what is enough
until you know what is too much."


Love that quote.


EDIT:
Quote:
Originally Posted by wallah
This method worked for me http://sheldonbrown.com/saddles.html scrol down to saddle height
beat me to it. Note to self: search thread for "sheldon" before posting.
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Old 06-14-07, 01:59 AM   #23
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I recently had a bike fitting by a pro who fits world class riders to their bikes.

Tilt, height and fore-aft position of the saddle all work together.

For height, one should lower his heel as far as possible with the toe on the pedal, and still have a slight bend in the knee.

Tilt varies from saddle to saddle.
My new Brooks Ti Swift requires an itsy-bitsy, teenie-weenie amount of nose up, compared to other saddles I have used.

For fore and aft, find the inside head of the shin bone, where it meets the knee cap, and tape a piece of string there with a weight on the free end of the string.
With cranks level and the front pedal at the 3 o'clock position, the string from the knee should fall through the spindle of the pedal.
One makes this happen by moving the saddle fore or aft.
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Old 06-14-07, 09:45 PM   #24
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Good job on the for aft recommendation...it is often overlooked when adjusting seat height. Height, Tilt, For-Aft.
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Old 06-15-07, 05:53 AM   #25
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Quote:
Originally Posted by Ken Cox
For height, one should lower his heel as far as possible with the toe on the pedal, and still have a slight bend in the knee.
WTF that is way to low for most people. Maybe your knee issues prevent you from getting decent extension and you get away with it because of short cranks or maybe you just lack ankle flexibility. Regardless of the reason this is absolutely the ****tiest advice you have ever given on here and you give a lot of ****ty advice.

How far you can flex your ankle should have no bearing on saddle height. A more flexible person has a much lower saddle with your measure. A longer foot should get a higher saddle, your system does the opposite. Worst of all for any reasonable person this will be far to low. Heel on the pedal is a much better estimate.
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