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-   -   Knee elbow overlap? (https://www.bikeforums.net/showthread.php?t=1045314)

12strings 01-16-16 06:26 PM

Knee elbow overlap?
 
Is this bad? I'm 5'9", 160lbs, riding a size 54 endurance geometry road bike 105mm stem. Saddle is set up at kops.

If I get low and fast in the drops, I have to keep my knees in and my elbows out or they will hit. Even in an aggressive straight elbows on the hoods it would happen.

Does this mean something is wrong? My saddle is not too low....in fact, most people say it is too high, but I pedal toes down, so it works for me.

jyl 01-17-16 12:44 AM

That's common.

oldbobcat 01-17-16 04:48 PM

If everything else works for you, keep doing what you're doing. Elbows in and knees out is highly ineffective.

jyl 01-17-16 07:25 PM

For example

https://www.google.com/imgres?imgurl...AlgQMwgeKAIwAg

andr0id 01-17-16 07:37 PM


Originally Posted by jyl (Post 18467068)

That's pretty extreme.

I prefer almost touching inside of elbow to outside of knee. If I exaggerate my pedal stroke and really bend my elbows in the drops, I can just barely bump. Otherwise it is just very close.

jyl 01-17-16 09:05 PM


Originally Posted by andr0id (Post 18467083)
That's pretty extreme.

I prefer almost touching inside of elbow to outside of knee. If I exaggerate my pedal stroke and really bend my elbows in the drops, I can just barely bump. Otherwise it is just very close.

Yes, a very aggressive position in that picture, so more overlap that he would have in a higher position. Anyway, overlap doesn't bother me, the elbows should always be wider than the knees. Too much overlap would suggest too short a bike.

oldbobcat 01-17-16 10:12 PM


Originally Posted by jyl (Post 18467235)
Yes, a very aggressive position in that picture, so more overlap that he would have in a higher position. Anyway, overlap doesn't bother me, the elbows should always be wider than the knees. Too much overlap would suggest too short a bike.

Tomke is riding the rivet, so to speak.

To the original poster, if you think your hands might be in too close, try a longer stem. The general rule is, about a 90-degree angle between the humerus and the back when the hands are on the hoods and the arms are nearly straight. The idea is to achieve some sort of balance between control of the bike, support, room to move (on the saddle and out of it), comfort, power from back muscles, and aerodynamics.

12strings 01-19-16 07:22 AM


Originally Posted by jyl (Post 18467068)


Actually, I don't have pictures, but I feel like that's what I'm experiencing.

jyl 01-19-16 11:16 PM

It's not a problem.

Carbonfiberboy 01-20-16 12:44 PM

This looks more proper to me:

https://www.stevehoggbikefitting.com...SO-500x375.png

I usually have my elbows just ahead of my knees, not quite as far as this photo. Does it make a difference? I think it's less tiring and easier to have a straight back with about this much reach.

Miele Man 01-20-16 04:20 PM

Back in the 1970s & 1980s that was quite common in racing setups when riding on the drops and was a big factor in determining the width of a handlebar.Check out the 44:00 point here:


Cheers

jyl 01-20-16 06:41 PM


Originally Posted by Carbonfiberboy (Post 18473418)
This looks more proper to me:

https://www.stevehoggbikefitting.com...SO-500x375.png

I usually have my elbows just ahead of my knees, not quite as far as this photo. Does it make a difference? I think it's less tiring and easier to have a straight back with about this much reach.

I think it depends on body proportions. If that rider's torso were shorter and femurs and/or forearms longer, he'd have knee/elbow overlap. No big deal. You want the knees in for aero anyway, if not for biomechanical. And it's hard/awkward to get the elbows narrower than the shoulders.

Plus that rider isn't on the rivet like Boonen is in the other photo.


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