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NARROW / WIDE PROFILE
PREVENTS CHAIN DROPS AND NEED FOR CHAIN TENSIONER

FULLY COMPATIBLE WITH REAR CLUTCH MECHS
For ultimate in single ring performance, throw the new Rotor QX1 MTB 'Q-RINGS' on your REX single speed cranks. You’ll be using the same chain ring set up that led Christoph Sauser to victory at the Cross Country Marathon World Championships.

The QX1 has an increased ovality of 12.5% to help you accelerate better, feel less muscle fatigue, experience smoother torque and better grip off road.

The alternating thick/thin tooth profile keeps your chain from dropping in even the worst conditions, eliminating the need for a chain guide or tensioner.
It is compatible with Rotor Rex 1.1 and Rex 2.1, SRAM XX1 (GXP and BB30) and Specialized cranks thanks to crank specific spiders from Rotor.

76BCD ring option - Please note QX1 rings have a unique BCD and will need adaptor spiders listed to fit Specialized or SRAM single cranks

Delivery Information

Hargroves Cycles offer Free Delivery for all orders over £9 with in Mainland UK (orders below £9 will be charged £1.99)

Current disptach time of UK Bike orders is 5-7 days.
In Stock Clothing, Parts and Accessories are usually delivered within 2-4 working days, often sooner.

Bikes and Bulky items are sent via TNT Courier and smaller items are sent via Royal Mail 2nd Class Post.

Items over £50 are sent with Royal Mail 1st Class track able service which is emailed to the customer on the day of dispatch.
For full delivery details please see our Delivery Page

International Delivery

Hargroves Cycles delivery all across Europe. Goods are shipped from the UK and are subject to import duties where applicable

For further delivery, pricing and restriction information please view our International Shipping Page

Returns Information

We will happily exchange or refund any item purchased at Hargroves Cycles within 365 days, except gift vouchers and personalized products, except where faulty.

Returned goods must be unused and supplied with their original packaging, unless faulty.

For full details on our Returns procedure please visit out Returns Section.

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ROTOR Bike Components comes from one of the nerve centers of technological development in Spain, the Aeronautical Engineering School of Madrid.

The basic idea of the ROTOR System comes from this school where some students developed the initial prototype in 1995. After the Head of the school approved the project, the University's Manufacturing Department helped with the creation of the prototypes.

The designers decided to stablish a company to complete this product development and start a business venture.

After the first working ROTOR bycicle wass introduced internationally, Dr. Conconi showed a huge interest in the idea and asked for a bicycle to carry out a study on the performance of the system, concluding that the system provided advantages more than evident compared to traditional crank systems. Dr. Alfredo Cordova, from Valladolid University also found that later versions of ROTOR System provided biomechanical obvious advantages.

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To avoid disappointment please contact the store before visiting to confirm current stock or to arrange to transfer items to desired store. Bikes require additional checks and this may affect estimated dispatch times.

  • Rotor Q-Ring QX1 Chainring