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-   -   Knee pain (https://www.bikeforums.net/singlespeed-fixed-gear/543498-knee-pain.html)

gottliver 05-20-09 08:45 AM

Knee pain
 
Hi All,
I rode a 65 mile ride this past sunday and now my right knee hurts. I had trained conservatively for this ride by riding 3 to 4 times a week (aside of my daily commutes which are 2-3 miles). Started riding some 20s, then some 30s, a 40 miler, a 52 miler and then finally the 65 mile ride. I had ridden mostly with converse and mks clips and straps. For the 40/50/65 mile rides I rode Shimano SPDs - which I have ridden on other bikes (mtn, road,ss) since the early '90s. During the big ride I started to feel a dull pain on the outside of my right knee. I have Shimano a530 pedals which has a platform on one side. I tried pedalling unclipped on the platform side but the pain was still there. I know my cleat alignment is good. Monday I went for a 6 mile ride just to loosen up the legs, immediately my knee hurt. Ditto yesterday. Now im taking a couple of days of the recover but feel that this is due to pushing a fixie rather than cleat issues. I think its an accumulation of the stress of riding a fixie exclusively almost every day for the last 15 months.

I only have room for one bike in my apartment in NYC and as much as i enjoy riding fixed i may have to sell it for a geared bike. I love riding distance (caught the bug on this ride) and would like to start regularly riding longer distances.

What do you guys think? Am I being paranoid? Smart? I'm very close to putting it up for sale and buying a Pacer.

elTwitcho 05-20-09 08:56 AM

Riding fixed isn't inherently worse for your knees than riding geared, it's being in an inappropriate gearing that will trash your knees. I run on the low side (70GI) and over the course of the past 12 months have learned to spin really fast comfortably so that I can easily outpace guys I ride with pushing 78-80GI set ups. The upside is that I never have knee pain because there is never a lot of stress on my knees and I'm quicker from a stop than just about anyone else. The downside is that if I ever get in a sprint pissing match with a roadie, a competent cyclist who actually trains will almost always be able to pull away from me.

For commuting and general riding purposes, I find this gear to be ideal and like I said, with training to learn how to spin you'[re easily as fast or faster than just about anyone short of the hardcore roadies you come across.

gottliver 05-20-09 09:26 AM

interesting, thx. Im running a 48x19 which isnt huge. not sure how to calculate the inches.

happytruck 05-20-09 09:45 AM


Originally Posted by gottliver (Post 8951858)
interesting, thx. Im running a 48x19 which isnt huge. not sure how to calculate the inches.

this

gottliver 05-20-09 09:54 AM

thx..so im running 73 inches.

gottliver 05-20-09 09:55 AM

scratch that, 67.9inches...

elTwitcho 05-20-09 10:03 AM


Originally Posted by gottliver (Post 8951858)
interesting, thx. Im running a 48x19 which isnt huge. not sure how to calculate the inches.

In that case your gearing definately isn't too high so scratch pretty much everything I said.

It may simply be a matter of over use, but someone with a bit more experience with knee pain should probably chime in. For what it's worth, other than pushing too high a gear fixed riding shouldn't be mechanically different in any way from riding a geared bike.

Atra 05-20-09 10:04 AM

Sounds super low. Are you spinning too much? That might cause a lot of knee pain as well. If you're not riding in a place like a lot of hills low GI's don't make much sense...

lukewall 05-20-09 10:13 AM

cleat position/saddle height

jamesbernatchez 05-20-09 10:19 AM

I also sometimes have knee pain, but it might be because I have only been riding for the past two weeks.

My gearing is 49/18 with 172.5mm cranks. If I ride mostly flat, with some hills would it be better to go down on the cog tooth count (say a 15t or 16t) or up? I want it to be easier to pedal.

chadbrochill17 05-20-09 10:26 AM

cleat position, saddle height and fore/aft position, crank length (changes?). Only adjust one at a time though.

I had this same pain for awhile after I switched to 170mm cranks from 165s. Overuse is probably the ultimate cause though.

gottliver 05-20-09 10:43 AM

im thinking overuse as well. I know my cleats, saddle and seatpost are all good. thing is, how is 70-80 miles a week overuse? i quess on a fixie it may be...well for me at least!

Geordi Laforge 05-20-09 12:31 PM

http://www.cptips.com/knee.htm

gottliver 05-20-09 08:00 PM

wow! thx geordi

dddave 05-21-09 12:30 AM

f*ck land i'm on a boat, motherf*cker.


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