Rotor QXL 130BCD Chainrings
Rotor QXL 130BCD Chainrings

£60.00

The new ROTOR QXL is a Q-Ring with increased ovalization. They have a similar shape to standard QRings, ensuring exceptional drivetrain stability. QXL rings do not replace standard Q-Rings, rather complement them as each is optimized for different rider profiles and situations.

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£60.00

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Description

The new ROTOR QXL is a Q-Ring with increased ovalization. They have a similar shape to standard QRings, ensuring exceptional drivetrain stability. QXL rings do not replace standard Q-Rings, rather complement them as each is optimized for different rider profiles and situations.

We believe that standard Q-Rings offer an optimal adaptation-stability-biomechanical balance for most cyclists. However, we are aware of scientific research and feedback from pro riders that shows that greater ovality can be desirable and useful for certain athletes since not all riders have the same muscle build, riding form, or pedaling style.

The feedback was positive from many professional riders previously wary of Q-Rings. These athletes reported an improved cycling experience when pedaling out of the saddle and accelerating.

QXL chainrings are most noticeable when riding in conditions of high power delivery and consistent maximum (peak) effort, like time trials, sprints, breakaways, etc.

The QXL rings are designed more for a type of rider rather than a specific cycling discipline

“Powerful” riders with larger muscle mass that produce a higher peak and average power output typically prefer QXL rings. For example, sprinters tend to have predominantly fast twitch muscle build. This makes an increased degree of optimal ovality because these riders benefit from the decreased negative work offered by the enlarged ovality.

Q-Rings can increase an avid cyclist’s performance by as much as 4 seconds per km in a sprint – that’s twice the benefit of an aero wheelset!

Professionally, athletes who have chosen to ride them have put to rest any doubts about their performance by winning two grand tours, more than 25 Ironman races and over 20 UCI elite Road, MTB and CX world champion titles.


Q-Rings make better use of your strongest muscles

The muscles recruited during pedalling, their relative strength during pedalling and the torque produced as a crankset rotates are shown in the figures below. From these graphs, it is clear that a round chainrings’ constant level of resistance interferes with optimal pedalling dynamics.

A Q-Ring gives a silky-smooth “perfect spin” by smoothening out torque variations and making better use of your strongest muscles, visible in the smoother and fuller Graphs to the right: “Round ring vs. Q-Ring spinscan”.

 

Peer reviewed scientific studies

Peer-reviewed scientific research has shown that Q-Rings offer a clear increase in performance compared to round chainrings. Elite level cyclists saw a 1,6 sec advantage in a 1KM TT study, generating 27W more power. For comparison, 60mm aero wheels often claim 1,5-1,8 sec/km and 16W savings.

What does this mean when you’re riding? You will discover increased endurance, realize explosive sprints and see a newfound tenacity in climbs. You will find that you can stick with the hardcore group that usually drops you. You will become an improved version of yourself, ready to set new PR’s and discover a new depth of performance. Triathletes will notice reduced strain in the bike split and better run split performance.

 

You can micro adjust the position of your Q rings to suit your riding style. Q-Rings use your leg muscles at a different rate than round rings, thereby changing your intramuscular coordination of motor units. Thanks to the OCP (Optimum Chainring Position) of the Q-Ring, you will find your best position seeking both comfort and efficiency.

A standard crank in combination with the OCP of the Q-Rings, allows approximately 5 degrees of adjustment.

 

The OCP (Optimum Chainring Position) of the Q-Ring allows you to pedal comfortably in all cycling positions:

  • Sitting
  • Standing
  • Climbing
  • Sprinting

 

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Delivery
This item is available for International delivery. Read more.

UK orders are sent using Royal Mail Tracked 48, Royal Mail Recorded or Royal Mail letter post for small, light orders and Parcelforce for heavier, bulky orders. Please allow approx 2-3 days for delivery after the order has been despatched. Large and heavy items, e.g turbo trainers and work stands, will be sent by Parcelforce (UK Mainland only). Overseas orders are sent using Royal Mail International Signed For service and Royal Mail Airsure service (where permitting). Heavier items e.g. bicycles are sent using Parcelforce Worldwide. Delivery times will vary depending on destination, customs clearance, local postal service etc. Please allow up to 14 working days for delivery. Postage costs include Insurance for the value of the order. Bicycles sent within the UK are sent by Parcelforce 48 Hour Service.

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