From the Kona Day 4 pics on the front page. Any info out there?
More oval in response to O’Symmetric, I imagine.
Looks like stronglight is getting into the oval ring market as well
Ogival, O,symetric, Rotor Q-rings, and Bio-Concept from Stronglight…who’s next?
Looks like the Stronglights, like the OSymmetric, are not tunable. If you sit at 73 or 76 or 80 degrees, where you apply more and less power/torque can change drastically. If you are going to go oval, only go with those that you can set up to your position.
I ride osymetric and I love the idea that rotor is making something to compete with them given the higher quality rings/ramps/pins but I question whether simply making a more oval shape will equal the effect that the osymetric rings create. Osymetrics are more of beveled square with 2 distinct ring sizes rather than just a large oval. It will be interesting to see how Osymetric users respond once they test them.
Looks like the Stronglights, like the OSymmetric, are not tunable. If you sit at 73 or 76 or 80 degrees, where you apply more and less power/torque can change drastically. If you are going to go oval, only go with those that you can set up to your position.
Totally agree. If the rings can’t be angularly adjusted, you’ll likely go slower(!). You’ve got be able to have that adjustability, as body position, saddle position, seat tube angle, gearing selection, chainstay angle, cassette size (no kidding) all affect how you’d tune your q-rings. That ability is the big advantage of q-rings.
Looks like the Stronglights, like the OSymmetric, are not tunable. If you sit at 73 or 76 or 80 degrees, where you apply more and less power/torque can change drastically. If you are going to go oval, only go with those that you can set up to your position.
Totally agree. If the rings can’t be angularly adjusted, you’ll likely go slower(!). You’ve got be able to have that adjustability, as body position, saddle position, seat tube angle, gearing selection, chainstay angle, cassette size (no kidding) all affect how you’d tune your q-rings. That ability is the big advantage of q-rings.
Speaking from experience you dont go slower, you just tend to ride at a steep angle. Granted its not ideal, but its still better than Q-Rings that have about 1/2 the effect of Osymetrics. What I question about these new rings is whether the larger oval will make up for the proportionally longer powerzone the slightly squared off shape of the osymetrics provide.
Speaking from experience you dont go slower, you just tend to ride at a steep angle. Granted its not ideal, but its still better than Q-Rings that have about 1/2 the effect of Osymetrics. What I question about these new rings is whether the larger oval will make up for the proportionally longer powerzone the slightly squared off shape of the osymetrics provide.
Compared to the standard circular ring, is this osymetric extended powerzone change noticeable on a sinusoidal pedaling graph ?
I know strange…where are all these coming from…
Even 1.15 ratio is not really enough to compare with osymetrics (if you were able to mount them in an ideal position). Been testing a few ideas… interesting results. Good thing aluminum is cheap 
I’m not sure to be honest. I have used them for about 3 months now on my TT bike and about 2 weeks on my road bike. Its not subtle at all…you feel the powerzone vs deadzone shift immediately once you start pedaling but after a short adjustment period it just feels like pedaling circles. The reason I have doubts that a simply larger oval will work is because if you look at the Osymetric shape its very boxy with the powerzone feeling consistent from about 12-6 give or take a little and then it simply slingshots through the deadzone because of the gear ratio change plus your leg momentum. With a larger oval your gear is largest at 3 and fairly different at 12 and 6 so while it may allow you to push harder through the powerzone I doubt it will give that slingshot effect through the deadzone.
Personally I want to try the new rotor because I could be wrong. The smoothness of the gear change and ability to rotate the gear for road vs TT might be better in the end.
I know strange…where are all these coming from…
Now that I want…did you get those made at an independent shop?
I know strange…where are all these coming from…
Now that I want…did you get those made at an independent shop?
Yes, I believe he did. He has been experimenting with different prototypes.
I have ridden the Q-rings for 4 years & after Wiggins/Froome’s 1-2 in the TdF TT, ordered an Osymetric ring. Now, after 3 months, I have gone back to the Q-rings. I feel that Q-ring’s shape produces a smoother pedal stroke. The weird thing is, that I had been mentioning to any of my cyclist friends that would listen, that I felt that 10% was too small a change, and 21% too abrupt (especially the “dual cam” shape) except for those young riders with monster quads, and that I wished that there was a chainring somewhere in-between, like a 15% change.
And here it is, these new chainrings with 15% gear reduction with the Rotor quality & their smoother pedal stroke, adjustability and now quicker transition thru the dead spot. The only real way to know if this is an improvement is to try them out !