Knee pain when riding TT bike

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Firetrail
Posts: 58
Joined: Thu Nov 16, 2006 6:53 am

by Firetrail

Hi,

Buffled over why my knee always acts up whenever i ride my TT bike. Knee would hurt during intense effort, so far all bliss when i ride my RD bike. Brief setup of both bikes:

> TT bike with a 76 degrees SA, saddle setback 5cm behind BB;

> RD bike with a 74 degrees SA, saddle setback 4cm behind BB.

Both bikes with the same saddle, ride using same shoes and pedals.

Besides setback adjustments, any other suggestions? TIA
**Ti RB | CF TT **

by Weenie


Dalai
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Location: Melbourne, Australia

by Dalai

Different cadence during efforts on the TT bike?

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stella-azzurra
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by stella-azzurra

Check saddle height on both bikes: center of BB to top of saddle.
I never took drugs to improve my performance at any time. I will be willing to stick my finger into a polygraph test if anyone with big media pull wants to take issue. If you buy a signed poster now it will not be tarnished later. --Graeme Obree

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Firetrail
Posts: 58
Joined: Thu Nov 16, 2006 6:53 am

by Firetrail

Cadence slightly lower when on TT. Aren't this the usual?

Saddle height is similar between both.

More suggestions?
**Ti RB | CF TT **

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stella-azzurra
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by stella-azzurra

I suggest to take other measurements and see how much they differ between the bike. The measurements need to be exact not similar.
Knee pain is a result of saddle height or cleat adjustment or both.
This is all I can provide.
I never took drugs to improve my performance at any time. I will be willing to stick my finger into a polygraph test if anyone with big media pull wants to take issue. If you buy a signed poster now it will not be tarnished later. --Graeme Obree

beardking
Posts: 261
Joined: Thu Dec 29, 2011 11:22 pm

by beardking

how low is your position on the TT bike?
could being hunched over be causing tightness thats leading to a knee not tracking right or something?

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Firetrail
Posts: 58
Joined: Thu Nov 16, 2006 6:53 am

by Firetrail

Trying out Rotor ring to see if it alleviates :)
**Ti RB | CF TT **

CamW
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Location: New Zealand

by CamW

Crank Lengths?

serbelo
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by serbelo

Where is the pain? In front or back of knee?
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Mr.Gib
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by Mr.Gib

Yes, describe the pain. Where, onset, etc.
wheelsONfire wrote: When we ride disc brakes the whole deal of braking is just like a leaving a fart. It happens and then it's over. Nothing planned and nothing to get nervous for.

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Firetrail
Posts: 58
Joined: Thu Nov 16, 2006 6:53 am

by Firetrail

Thanks.

Pain is at front of knee, above the knee cap. Most intensely felt when pedaling downwards at 3 O'clock position...
**Ti RB | CF TT **

CamW
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Location: New Zealand

by CamW

Don't mean to be a broken record but are the crank lengths the same between bikes?

Mr.Gib
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by Mr.Gib

Spring Knee (see Andy Pruitt)? Maybe the more closed angle at the hip on the TT bike is the culprit.
wheelsONfire wrote: When we ride disc brakes the whole deal of braking is just like a leaving a fart. It happens and then it's over. Nothing planned and nothing to get nervous for.

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Firetrail
Posts: 58
Joined: Thu Nov 16, 2006 6:53 am

by Firetrail

Thanks for all the suggestions. Looking into them. ..

In the meantime, I've installed a rotor q ring to see if it alleviates. To ascertain , which spider arm does one align the Position 4 with in the ring? Watching videos and readups, I'm still confused. Thanks.
**Ti RB | CF TT **

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Mario Jr.
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by Mario Jr.

Which crank? On eg. Shimano, Sram, FSA, Rotor cranks it's the hole opposite to the crank arm.

by Weenie


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