Now 3 years into development Q-Rings can be found in all disiplines. Pretty much full compatibility with all major Suppliers has helped take ROTOR to a new level. Magnus Backsted is now racing on track with the special ovalisation that Marianne Vos used to win the worlds champs
Q-rings make your spin cycle smoother, make climbing easier on the legs, and helps reduce the build up of lactates during hard efforts, Pros tell us they are great for stage racing and blocks of training.
Q-Rings can be tested in most of our dealers,(see listings)
In recent years Rotor have developed Rotor
System Cranks, which became the definitive solution to
the dead spot. Now Rotor's new challenge is again to succeed
where many other failed before, by introducing ovalized (elliptical)
chainrings with variable regulation points that can be customized
for each rider's needs.
Q-Rings
offer some of the benefits of Rotor Cranks while enabling
cyclists to use their current cranks. Q-Rings also offer
a somewhat comparable solution to the inefficiency of the
dead-spot, at a lower cost and reduced weight, over the Rotor
System Cranks.
The
dead-spot limits the cyclist's performance; sometimes causes
tendonitis and injuries to the knee, as well as a short loss
of traction while cycling off-road. Q-Rings provide a helpful
solution to minimize this inefficiency, by definitively reducing
the dead-spot, which is typical in conventional pedaling.
Rotor
Q-Rings minimize the dead spots like reducing the size of
a regular chainring, and give you more time during the pedal
down stroke. This allows for a lower physical demand on your
body, so you are able to ride longer with less fatigue, climb
easier...
The
Rotor Q-Ring is different from other ovalized chainrings,
both present and past; a new concept incorporating a patented
variable regulation system (OCP) that applies some of the
biomechanics of the Rotor Crank System to conventional cranks.
How
It Works Rotor
Q-Rings do not eliminate the dead-spot (as do Rotor Cranks)
but help to reduce its negative effects, moving the legs easier
through the dead-spot imitating a smaller circular chainring,
and enabling the legs to remain in the power stroke for a longer
period of time when compared to round chainrings. Q-Rings change
the equivalent tooth size by decreasing it before the dead-spots
and increasing it when the rider is in the power mode (when
more power is available at the pedal down stroke).
A
53T Q-Ring, around the upper dead-spot is equivalent to a
51T, but as the pedal goes down and more strength is applied
(just passed the maximum power moment), the equivalent chainring
tooth size reaches 56T.
Features
and benefits: OCP
(Optimum Chainring Position), a Rotor patented feature is the
secret to success, where others have failed. The OCP system
allows you to choose the angle where you obtain the maximum
gear ratio, customizing pedaling to each and every cyclist,
where it is needed most. Since the maximum power moment is
different for every cyclist (performance is different depending
on pedaling style and position on the bike), the OCP System
customizes the Rotor Q-Rings to your geometry and cycling habits,
and takes maximum advantage of alternative leg inertias on
every pedal rotation. OCP is Rotor Q-Ring's bio-mechanical
key!
-
More uniform power delivery due to the modulation of the
gear ratio every moment. Rotor Q-Rings are designed to obtain
a soft, comfortable way of pedaling with uniform muscular
work, so they allow an easy and quick adaptation. Rotor Q-Rings
give a smoother power transfer, helping to maintain traction
on slippery surfaces, and to avoid the bobbing effect on
suspension bikes.
-
Mitigation of knee pains: Since Q-Rings imitate a circular
(but smaller) chainring around the dead spots, minimize muscle
requirements at the dead- spots, just when your knees need
it.
About
the Q-technology: Lightweight & Quality:
CNC machined from the highest quality aluminium, with a special
nickel plated finish for extreme wear resistance.
Latest
technology with simplest mechanics: Q-Rings are user friendly;
easy to install and easy to find and change the regulation
setting through the patented OCP System.
Affordable:
prices are within the reach of every cyclist.
Designed
and patented by ROTOR: Innovation and performance through
our engineering at the service of the cycling community.
Fits
most high-end bikes: Q-Rings are available in the following
versions:
Road
53/40T for
Shimano and other cranks using the 130 BCD (bolt pattern).
Road 53/41T for Campagnolo and
other cranks using the 135 BCD.
Road 50/36 for FSA and other
Compact cranks using the 110 BCD (not valid for Campagnolo
Compact).
- MTB 44/34/24T for MTB cranks 104/64 BCD (Shimano XT and similar).
(Other
Q-Ring sizes will become available in the future)
What
is the difference between Q-RINGS and other non circular
chainrings?
The
design of Q-RINGS comes from Rotor Cranks biomechanical technology
more so than from any previous oval or asymmetrical type chainring.
Non
circular chainrings have been available in various shapes
since the late 1890’s. All of them attempted to avoid
the negative affects of the dead spot. The most recent models
that are well known are the Shimano Bio-Pace and the O.SYMETRIC "Harmonic".
The
ROTOR Q-RINGS are different from these two types, and all
other previous types inasmuch as Q-RINGS:
A)
Q-RINGS take into consideration the forces from your legs
in static conditions in addition to the inertia of the bicycle,
the rider and the legs of the rider.
B)
Q-RING provide a smooth rhythmic pedaling motion instead
of the high-gear-low-gear feeling and high accelerations
at the dead spots.
C)
Q-RINGS position the equivalent high gear about 20 degrees
past the power-side-crank’s horizontal position, which
is the approximate place where you can obtain the maximum
benefit of the higher gear.
D)
Q-RINGS have the OCP (Optimum Chainring Position) enabling
you to customize (fine tune) the position of the chainring
for your personal riding habits and riding position on the
bike.
E)
Q-RINGS mitigate pain and damage to the knees that is usually
caused by the dead spots; if your knees feel pain they cannot
deliver maximum power; when the pain is removed, your performance
will clearly increase.
Rotor
Q-Rings do not eliminate the dead-spot (as do Rotor Cranks)
but help to reduce its negative effects, moving the legs easier
through the dead-spot imitating a smaller circular chainring,
and enabling the legs to remain in the power stroke for a longer
period of time when compared to round chainrings. Q-Rings change
the equivalent tooth size by decreasing it before the dead-spots
and increasing it when the rider is in the power mode (when
more power is available at the pedal down stroke).