Know your

movementEnhance your performance through

biomechanics with Q RINGS® & 2INpower®

Why Q RINGS®?

Q RINGS® are oval chainrings designed to increase performance of cyclists by reducing the impact of dead spots in the pedal rotation.

Q RINGS® become larger around the strong zones and smaller around the weak zones. Therefore time spent in the strong zones is longer, while time spent in the weak zones is shorter.

Everyone’s pedaling style is different, so weak and strong zones vary by a quantity of degrees from person to person. The ability to adjust the position of chainring orientation to the crank via OCP (Optimum Chainring Position) is the key to fit each unique user’s needs.

Biomechanicalbenefits of Q RINGS®Naturally smooth spin

Q RINGS® allow us take better advantage of the natural way we apply force during the pedal stroke while the fixed diameter of round chainrings don’t provide the same possibility.

Reduced knee strain

There are less accelerations and decelerations because knee speed remains more constant.

In the weak zone you need to apply more force with a round ring than with an oval ring because the diameter of the Q RINGS® becomes smaller. The resulting force representing the tension suffered by the knee is therefore less with Q RINGS® than with round chainrings.

Naturally smooth spin for everybody thanks to OCP.

If pedaling style rotates the pedal stroke, then the orientation of non-adjustable oval rings may not be appropriate.

OCP technology allows to rotate oval Q RINGS® to fit everyone’s pedaling style.

Increased performance

Reduced fatigue and faster recovery.Increased endurance.Stronger sprints and accelerations.

800 4,1%

0,6% 5,1% 6,6%

400

600

200

S1

685Std

Wat

ts

Sprinting power

578 499 476

715Oval 582 526 510

S2 S3 S4

20-second sprints, 40-second recovery: proceded by ramp test to ex-haustion. Dr. D. Alfredo Córdova Martínez, Dr. D. Gerardo Villa Vicente, Dr. D. Jesús Seco Calvo, D. Iban Latasa Zudaire. Analysis of physio-logical and biomechanical effects of oval variable gear chainrings (Q-RINGS) in comparison to conventional circular chainrings.

Crank angle

Knee speed depending on rings

Knee speedRound chainrings

How a pedal stroke looks like for each leg. What round rings ask the rider to do. What oval rings ask the rider to do.Color bars: Muscles activation

Knee speedQ RINGS®

30 36 42 48 54 60 66 72 78 84 80 96 102 108 114 120 126 132 138 144 150

Crank angle

Crank angle

Pedaling style

Pedaling style

OCP OCP

Pedaling style

Pedaling style

Torq

ueTo

rque

Torq

ue

Round chainringsOval chainrings

Outer circle = downstroke Inner circle = upstroke

0º

345º

330º

315º

300º

285º

270º

255º

240º

225º

210º

195º

180º

165º

150º

135º

120º

105º

90º

75º

60º

45º

30º

15º

400

200

200

100

OCA 88.5º

OCP #1 RANGE

OCP #5 RANGE

OCP #2 RANGE

OCP #4 RANGE

OCP #3 RANGE

0º

345º

330º

315º

300º

285º

270º

255º

240º

225º

210º

195º

180º

165º

150º

135º

120º

105º

90º

75º

60º

45º

30º

15º

400

200

200

100

OCA 92.5º

OCP #1 RANGE

OCP #5 RANGE

OCP #2 RANGE

OCP #4 RANGE

OCP #3 RANGE

Pedal analysis via TORQUE 360 feature

Optimise the round shape of your pedal stroke by minimising the dead spots. Identify your Optimum Chainring Position seeing the orientation of your pedal stroke and the angle it is centred through the OCA metric.

Optimise your pedal stroke technique to reduce the negative force applied in your upstroke.

OCP#1 OCP#2 OCP#3 OCP#4 OCP#5

73º-81º 79.5º-87.5º 86º-94º 92.5º-100.5º 99º-107º

Cranks orientation in relation to the Q RINGS®Combined pedal stroke

One-leg pedal stroke visual

OCA - OCP Range table

OCA

ROTORpowermeters

INpower® accurately measures power from the left leg via the axle and multiplies it by two to provide total power data.

2INpower® additionally measures power from the right leg via the right crank to provide precise data about power output and balance.

Both include the unique TORQUE 360 feature to demonstrate where improvements can be made to pedaling performance.

ROTOR’s OCP technology applied to INpower® allows oval Q RINGS® to be adjusted for optimized pedaling biomechanics.

INpower® technology

TORQUE 360 and OCA:

Pedal analysis Optimize your pedaling biomechanics by viewing your pedaling techniqueAt what angle your pedal stroke is centered – OCA (Optimum Chainring Angle)How you should orientate cranks in relation to the Q RINGS® based on your pedal stroke – OCP

MEASUREMENT:

Strain gauges in the axle for left leg power measurement. Strain gauges in the right crank for right leg power measurement (2INpower® only). Accelerometers for accurate crank angle position throughout the complete pedal stroke. Measurement rate 200 Hz.

ELECTRONICS & BATTERY:

Electronics inside axle for protection against dust & shocks.Electronics inside axle for temperature compensation and centered rotational mass. Antenna inside antenna cover on the right. 250 h battery life and rechargeable (2IN) 300 h battery life, AA easy to replace (IN).Different LED colors for different messages (2IN) Yellow LED when it is active (IN).

ROTORUser software

UniversalBottom Bracket

ANT+™Compatible

ROTORPower app

Bluetooth®Integrated:electronics inside

NEW features optimized for Q Rings®

Relationship betweenOCA and OCP

You can change the cranks position in relation to the Q RINGS® (OCP) to get the maximum efficiency considering your own pedal stroke style, based on your OCA data.

The OCP is a ROTOR exclusive techonology, which makes the difference between ROTOR oval chainrings and others.

Features

Balance

TORQUE 360

Proprietary ROTOR metrics

Optimum Chainring Angle (OCA)

Bluetooth Smart® & ANT+

Rechargeable Battery

Direct Mount

ROTOR Power smartphone app

Power, cadence,torque effectiveness and

pedal smootheness

Technology comparison table

OCP #1

OCP #5

OCP #2

OCP #4

OCP #3

MTB

MTB

ROAD

ROAD

Road

MTB

Features

Weight (g) 775 g (170 mm and

DM 50/34)

250 hrs(Rechargeable with

USB cable)

4 pairs of gauges

IPX7

2 pairs of gauges

300 hrs(Standard AA

Battery)

165 mm / 170 mm / 172.5 mm / 175 mm

673 g (170 mm and

DM 50/34)

Crank lenghts

Batterylife

Strain Gauges

Waterresistance

Technical Specifications

2INpower® & INpower® technical specs

Features

Weight (g) 695 g (170 mm and

DM Q Rings® 30T)

250 hrs(Rechargeable with

USB cable)

4 pairs of gauges

IPX7

2 pairs of gauges

300 hrs(Standard AA

Battery)

165 mm / 170 mm / 175 mm

609 g (170 mm and

DM Q Rings® 30T)

Crank lenghts

Batterylife

Strain Gauges

Waterresistance

Technical Specifications

Q RINGS® technical specs

Road

Q RINGS® 2x One-Piece Direct Mount Oval ChainringsSizes: 53/39, 52/36, 50/34, 48/32, 46/30 Weight: 184g for the 52/36

Q RINGS® 1x One-Piece Direct Mount Oval ChainringsSizes: 54, 52, 50, 48, 46, 44, 42, 40, 38Weight: 97g for the 42t / 125g for the 48t

Q RINGS® Spider Mount Oval ChainringsSizes: BCD 110x4 - 54/42, 53/39, 52/36, 50/34

Material: 7075 CNC’d aluminumColor: Matt black anodized and laser etchedTechnologies: OCP Mount, Direct MountOvality: 12.5%

MTB

Q RINGS® 1x One-Piece Direct Mount Oval ChainringsSizes: 40, 38, 36, 34, 32, 30, 28, 26 Weight: 67g for 30t

Q RINGS® DM Rex, DM Race Face®, DM SRAM® 6mmSizes: 34, 32, 30

Q RINGS® DM SRAM® 0mm / 3mmSizes: 36, 34, 32, 30

Material: 7075 CNC’d aluminumColor: Matt black anodized and laser etchedTechnologies: OCP Mount, Direct MountOvality: 12.5%

Q RINGS® 1x Direct Mount

Q RINGS® 2x One-Piece Direct Mount

Q RINGS® 1x One-Piece Direct Mount

Q RINGS® Spider Mount Individual

Q RINGS® 1x SRAM® Compatible

www.rotorbike.com

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