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Radman64

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Just swaped out my shimano 105s for a pair of Time RXS ti pedals.They seem to have a lot of side to side float, i guess it's a good thing,but my feet move around more than i am used to. Don't see any kind of adjustment for in /out or side to side. I guess i will just have to get used to it.
 
Can you have too much pedal float?

Yes; To me, any float is too much pedal float
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Agree with Grumpy here: any float is too much float for me.

But on to your issue: While some rider's knees can suffer from too much float, it's not a common thing. Time RXS pedals give you 5 degrees left and right rotational float, so the total rotational float arc is just 10 degrees as compared to Speedplay's 15 degrees. The RXS lateral float is only 2.5 mm, so I doubt you can even notice that.

My guess is that you have the re-centering force set at the lowest setting (there are three), giving you the sensation of "too much float." But even at that lowest re-centering force setting, you should get used to the RXS pedals in short order. Speedplays, for example, have no re-centering force at all and people get used to those very quickly.
 
yes. at leat for me. I have a damaged ACL in right knee. SpeedPlay Xs allowed too much float and toe pointed in, heel out way too much. With Zeros i can adjust and control the float.
 
I recently switched from Look red cleats (more float) to gray cleats (less float) and found that not only do my knees hurt less, discomfort I was experiencing was probably due to poor adjustment. Less float and good cleat positioning seems to be the best route to me.
 
It's personal

Just swaped out my shimano 105s for a pair of Time RXS ti pedals.They seem to have a lot of side to side float, i guess it's a good thing,but my feet move around more than i am used to. Don't see any kind of adjustment for in /out or side to side. I guess i will just have to get used to it.
The short answer is that some people can have too much float, but most people don't have a problem with it. Many people get relief by switching to Speedplays, which have the most float of any major pedal brand. For some people, Speedplays are a problem. I don't know that there is any way to predict who will be affected either way.
 
Wim, you say there are 3 re-centering force setting on the RXS pedals, i don't see any kind of adjustment on mine.
New guy here. My first post! :)

There is a small aluminum barrel-shaped screw on the crank side of each pedal. I think it takes a 2, 2.5, or 3mm allen wrench. The screw has three flats on it, and turning it allows you to adjust spring tension for cleat release, but I don't know if it actually affects float tension. You can also swap the two cleats around (left cleat to right shoe and right cleat to left shoe), which gives you more or less Q-factor (distance between pedals).

I like the RXS pedals because of the limited float AND the self-centering float.
 
There is a small aluminum barrel-shaped screw on the crank side of each pedal. I think it takes a 2, 2.5, or 3mm allen wrench. The screw has three flats on it, and turning it allows you to adjust spring tension for cleat release, but I don't know if it actually affects float tension..
That's it exactly. Takes a 2.5 mm wrench. In typical French instruction manual fashion, the photo is terrible, but you get the idea. (The shiny cylindrical object to the right is the pedal axle.)

The screw doesn't really adjust cleat release tension, although it might feel that way. It adjusts the tension of the self-centering spring. So it adjusts the force that brings your foot back to center, but at the same time, the force that resists the attempt of your foot to induce rotational float. The "maximum float" in parentheses at the end of the paragraph is shoddy writing / translating / editing. That screw does not adjust float in the sense of angular or linear displacement.

Hope I haven't led you astray. It's been a while since I adjusted an RSX pedal and I hope that Time hasn't dropped that feature. I know it's not on all models, but yours should have it.

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@ Grumpy and wim. Steve Hogg seems to disagree with you:

I get a bit sick of first time clients telling me before a fit “I don’t like freeplay because my foot slops around”. If the rider is reasonably functional pelvically, and if their position is good and the amount of foot correction ideal and the balance of correction between arch support and wedging perfect, the feet don’t slop around no matter how much rotational movement there is.
Quoted from: Blog and fitting info » Steve Hogg's Bike Fitting Website
 
@ Grumpy and wim. Steve Hogg seems to disagree with you:



Quoted from: Blog and fitting info » Steve Hogg's Bike Fitting Website
Well, there is a pretty big "if" in there, for people that do have an anatomical issue or injury. On the other hand, a lot of folks that have problems with float also have their cleats positioned less that ideally. A lot of complaints also seem to come from people that have their cleats more forward than they probably ought. Either way, most benefit from float when properly set up. A few don't.
 
@ Grumpy and wim. Steve Hogg seems to disagree with you
Can only speak for myself, but not really. I've never felt that my foot "flops around" with float or that I have "less power" with float.

The simple reality is that float makes my knees hurt, fixed doesn't. I believe that I have only a very small amount of tibial rotation ("torsion") during the crank revolution, and that my tendons are still flexible enough to easily accommodate the small amount of figure-eight knee tracking that I do have. Why float hurts my knees I don't know. But it's possible that some of the muscles which stabilize my joints are weak. And of course, theyre not strengthened by riding fixed.
 
The only float that is too much for me is when there is so much I can't release. My foot seems to know the angle it needs to be at on the bike...when walking, when running, etc... I can even ride a bike with flat pedals.
 
Can only speak for myself, but not really. I've never felt that my foot "flops around" with float or that I have "less power" with float.

The simple reality is that float makes my knees hurt, fixed doesn't. I believe that I have only a very small amount of tibial rotation ("torsion") during the crank revolution, and that my tendons are still flexible enough to easily accommodate the small amount of figure-eight knee tracking that I do have. Why float hurts my knees I don't know. But it's possible that some of the muscles which stabilize my joints are weak. And of course, theyre not strengthened by riding fixed.
I hope someone knowledgable on this subject can correct me if I'm wrong, but I've always been under the impression that the tibial rotation only occurs within the last 10 degrees or so of knee extention. If that's true, this should not even be an issue when the rider is properly positioned.
 
New guy here. My first post! :)

There is a small aluminum barrel-shaped screw on the crank side of each pedal. I think it takes a 2, 2.5, or 3mm allen wrench. The screw has three flats on it, and turning it allows you to adjust spring tension for cleat release, but I don't know if it actually affects float tension. You can also swap the two cleats around (left cleat to right shoe and right cleat to left shoe), which gives you more or less Q-factor (distance between pedals).

I like the RXS pedals because of the limited float AND the self-centering float.
And my knees and hips hated them for the same reason.

Here is a good article comparing pedals.

I am now running Speedplay Zero's after trying the Speedplay X's.
I have dialled in the float and position I want with the Zero's.
I could not get used to the massive amount of float the X's offered.
 
I suffer from definite "foot flop".

If I could, I'd go go back to a deep plastic cleat, and double toe straps. Since I can't, I'll stick with black "Delta" cleats.
 
Have u tried speed plays with a huge amount of float, compared to looks 6%? I had to turn my heel way out to get unclipped, that twisting really hurt my knees, but I have been riding clipless mavic, look or d/a fixed for over 20 yrs now.
 
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