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Rotor Q Rings ?

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Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

Rotor Q Rings ?

Old 11-01-12, 07:43 AM
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Adrianinkc
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Rotor Q Rings ?

Anyone have experience with these? Just ordered a set this morning to put on my fsa slk crank.
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Old 11-01-12, 07:46 AM
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Only experience I have is that I get dropped regularly buy a guy that uses them.
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Old 11-01-12, 07:49 AM
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i get dropped by guys that don't use them.
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Old 11-01-12, 10:40 AM
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Hi,

I think the physics behind them makes sense. I think that how you orient them is tricky and easy to get wrong (although it is probably easier on a road bike than on a recumbent bike where I've read more about them).

Let us know what you think!

Cheers,
Charles
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Old 11-01-12, 10:47 AM
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I just put a set on, 52x36 semi compact (changed from a 53x39 standard), only 3 outdoors rides on them. The first ride felt weird and I could definetly tell after the ride that I was using muscles I had not before. Specifically, my hamstrings and calfs were a bit sore. Also, I felt like I needed to be further back on the saddle and I have moved it back by going from a 10mm setback post to a 20mm setback.

Standing efforts feels different, still trying to get used to it. I have not tried sprinting with them yet. The Q-Rings feels much better on 2-5% climbs.

Overall, I cannot tell much of a performance difference. Going from a 53x39 to a52x36 was a good choice. I like spinning my gears, and could never get into a good spin with the 53 tooth chainring; I was either spinning too much or mashing.
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Old 11-01-12, 12:44 PM
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Neighbor's kid installed Q-Rings on his tricycle and he dropped me by the first intersection. Before the Q-Rings, we were even.
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Old 11-01-12, 02:21 PM
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Ok thanks for the feedback guys. I will report back with an update.
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Old 11-01-12, 06:36 PM
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I'M also curious about these, it doesn't seem many people around here have these things..
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Old 11-01-12, 06:46 PM
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Q-rings sure do look sexy tho.
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Old 11-01-12, 07:24 PM
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Originally Posted by E.S. View Post
Q-rings sure do look sexy tho.
It doesn't hurt that Wiggins used them (or something similar) to win the TdF.
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Old 11-01-12, 07:49 PM
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I think wiggins used osymetric rings which are a little more aggressive as far as shape.
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Old 11-01-12, 08:45 PM
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Originally Posted by Adrianinkc View Post
I think wiggins used osymetric rings which are a little more aggressive as far as shape.
I believe you are right on both points. It is interesting to see this idea gaining traction at the highest levels of the sport.

Cheers, Charles
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Old 11-01-12, 09:31 PM
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I just got the Q-rings on my Cervelo and I'm having issues with poor shifting. I'm hearing from others that my problem may be with the SRAM Red Titanium FD. I hear many are switching to a Force FD and that solves the problem. Apparently the titanum cage is to flexy.

I like the feel of the rings and they seem to allow me to spin more efficiently, but then I'm already used to non-round rings with the Shimano Bio-pace rings on my Mt. Bike. Hopefully when I get my new Force FD the shifting will improve.

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Old 11-02-12, 02:13 PM
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I have an Ultegra FD, no issues with front shifting. Must be the Red FD - it is trouble shifting regular chainrings.
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Old 11-02-12, 11:10 PM
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RedLeg, what make frame are you on? I heard that besides the SRAM Red FD issue that Cervelos may have the braze-on in a slightly different position and this may cause FD alignment issues. SRAM makes a shim that apparently addresses this and repositions the FD to align with the rings better. Do you have the TT/Aero or the lighter weight road version Q-rings?

Thanks for any comments you may have on getting the shifting set up better.

Ed
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Old 11-03-12, 12:55 AM
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I found a guy who did some fairly thorough testing and writeup of them:

https://bikedynamics.co.uk/blog/?p=53
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Old 11-03-12, 01:23 AM
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Originally Posted by retrac1324 View Post
I found a guy who did some fairly thorough testing and writeup of them:

https://bikedynamics.co.uk/blog/?p=53
He links to the ultimate write-up on the subject too: https://www.trainsharpcyclecoaching.c...tric-study.pdf
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Old 11-03-12, 06:05 AM
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Originally Posted by enorth View Post
RedLeg, what make frame are you on? I heard that besides the SRAM Red FD issue that Cervelos may have the braze-on in a slightly different position and this may cause FD alignment issues. SRAM makes a shim that apparently addresses this and repositions the FD to align with the rings better. Do you have the TT/Aero or the lighter weight road version Q-rings?

Thanks for any comments you may have on getting the shifting set up better.

Ed
I am riding a Spooky Skeletor. FD is a clamp-on, no shims were necessary. The chain rings are the road version (not aero), installed on a Rotor 3d crank. My FD was setup by a bike shop that has some experience with the QSymetric rings. It looks to me that part of the equation was getting cable tension right. It seems to have a bit less tension right now, from when I had normal chain rings on.
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Old 11-03-12, 03:44 PM
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I have them on my MTB and switched to them in Sept on the road bike. I am running the road compact (50/34) rings on a Rotor 3D crank. The rest of the drivetrain is Ultegra Di2. It took a bit of adjusting to get the shifting set, but since I got it right, there has been no issues. Took the legs about 300-500 miles for the legs to adjust. I have about 750 miles so far on them. I have not yet tried any setting other then the middle (OCP3) setting. I am thinking about trying going to OCP2 which gives the taller part of the gear a bit sooner in the stroke. I think I may just wait before making any more changes though to really get familiar with it. I am an average recreational cyclist...about 4k miles a year on the road.

I have noticed that I am usually spinning a gear or 2 up than I was on the stock Ultegra crank. Speed is marginally up, but mostly due to running a faster gear. I can't comment too much on real climbing as my terrain here on Cape Cod is pretty flat, but the "climbs" I do I have, I am faster on...at least that is what Strava/Garmin says.
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Old 11-03-12, 04:19 PM
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I have a set of the Q Rings and I love them. They are not for everyone and not everyone likes them, but for me, they are one of the better upgrades I made to my bike. Riding on flats is fine, but for me, they shine with sprinting and especially climbing. I highly doubt Im putting any extra power, and that was not my intent, but I sure am flying up the hills faster and I'm able to spin a higher cadence while in the saddle. The pedal stroke feels much smoother to me. I ride a Cervelo RS with the new RED YAW FD and shifting is great. Never dropped a chain and shifts are clean. It does take time to get it dialed in just right with some small adjustment but end result is worth it.
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Old 11-04-12, 07:32 AM
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FWIW, I'll mention that elliptical (and similar) rings have been around for well over 100 years, have been quantitatively tested by many, shown to offer no universal advantage, so come down to a matter of individual preference and style.
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Old 11-04-12, 08:15 AM
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Originally Posted by Looigi View Post
FWIW, I'll mention that elliptical (and similar) rings have been around for well over 100 years, have been quantitatively tested by many, shown to offer no universal advantage, so come down to a matter of individual preference and style.
Many may have been around for a long time but they have also changed and evolved. Some, like the Biopace, didn't pass the test and are now obsolete. The main point I feel many people miss is that many riders like the oval rings for the FEELING they provide and not extra wattage that they may or may not be producing. Am I putting out extra power when climbing with oval rings, probably not. Do they allow me to spin up steeper hills and keep a smooth pedal stroke, definitely. Feeling is something that can not be quantified. It must be experienced and only then you can decide whether something is for you or not.
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Old 11-04-12, 08:33 AM
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This thread is making me excited to get my rings. Can't wait.
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Old 11-04-12, 01:22 PM
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So what I am supposed to take from those articles is that the reason to get the non-circular rings is because it reduces strain on the joints at the non-efficient points of the pedal rotation?
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Old 11-04-12, 01:48 PM
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I have been using them for a couple months now. It took only a couple rides to get used to them, now I don't even think about them. And to be honest, I have already forgotten what circular chain rings feel like, so I am not sure if I could intelligently compare them. Front shifting is fine on mine.
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