Rotor Q Ring Outer Aero Chainring 55T 130BCD

In stock at our suppliers warehouse, estimated dispatch in 6 - 7 days

UK and EU delivery available.

Available for Reserve & Collect.

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When you’re battling against the wind, every suggestion is welcomed and none more so than the Rotor Q Ring Outer Aero Chainring 55T 130BCD. Famously used by Sir Bradley Wiggins in the 2012 Olympic Time Trial, this chainring is proven to enhance power transfer by reducing the dead spot and enhancing time in the most efficient chainring position.

Rotor Q Ring Outer Aero Chainring 55T 130BCD

Cutting through the wind, enhancing your speed and being as efficient as possible is always on the agenda when you head out on the bike, and with the Rotor Q Ring Outer Aero Chainring 55T 130BCD, you’ll be ever closing to achieving your goals.

Designed to boost your cycling performance by reducing the dead zone where you produce incremental amounts of power and increasing the time you spend in the power zone, this chainring gives you a much more efficient and power conscious base for you to ride on. The 10% ovality is what truly sets this chainring apart from the rest of the cycling market, and 5 Optimum Chainring Positions (OCP) allows for fine-tuning your riding experience by orientating your chainrings around the most productive area of your pedal stroke.

Weighing only 181g, the Q Ring doesn’t add any weight to your chainring set up, and thanks to its 100% CNC-machined 7075-T6 aluminium alloy construction, it offers all the stiffness you need to maintain an unparalleled power transfer.

Thanks to its compatibility with all 9, 10 and 11-speed groupsets, the Q Ring is ready to enhance your performance whether that be on the road, in a triathlon or in a time-trial.

  • 100% CNC-machined, 7075-T6 aluminium alloy
  • Aero design: reinforced rigidity and aerodynamics
  • Steel shifting pins
  • 5 OCP points
  • Designed to work with all 9, 10 and 11-speed groupsets
  • Some cranks require specific Q-Rings
  • Weight: 181g


UK Delivery Options

Free Delivery on all orders over £30

Estimated delivery within 4 working days (a delivery charge of £1.99 for orders under £30.00 will apply)

CollectPlus Delivery - £1.99

Have your order delivered to your local shop for just £1.99! For Highlands and Islands, please allow up to 5 working days. Orders can be shipped to UK CollectPlus locations specified on the website where they will be held awaiting collection for a period of 10 days.

Orders placed are normally dispatched within 2 working days.

Priority 1st Class Delivery - £2.99

Estimated delivery within 2 working days.

Next Working Day Delivery* - £4.99

A guaranteed tracked courier delivery, place your order before 3pm, deliveries are made Monday to Friday.

Saturday pre 12 Delivery - £4.99

Saturday delivery orders must be placed by 1pm Friday and are only available on items in stock in our warehouse. Orders are prioritised through our warehouse and are delivered on Saturday pre 12pm by courier. Package must be signed for upon delivery.

Sunday pre 12 Delivery - £4.99

Sunday delivery orders must be placed by 1pm Friday and are only available on items in stock in our warehouse. Orders are prioritised through our warehouse and are delivered on Sunday pre 12pm by courier. Package must be signed for upon delivery.

Reserve and Collect** - FREE

Reserve & Collect is available on all items marked 'Collection'. It is a FREE delivery option that allows you to collect your order from either our Sigma Sport Store, Hampton Wick or our Reserve & Collect location in Esher. Just select the Reserve & Collect button in the basket.

** Reserve and Collect Collections - Clothing, parts and accessories: Next day. Orders placed on Friday, Saturday or Sunday will be available for collection after midday on the Monday (excluding Bank Holidays). Bikes: 4 days if in stock at store, collect in up to 7 days (sometimes quicker) if in stock at warehouse.

* Next Working Day delivery is only available on items in stock in our warehouse and excludes pre- order items. Next Day refers to the next working day, Bank Holidays will add an extra working day to the estimated delivery lead times. UK next day excludes Saturday deliveries. This service is not available to some remote postcode areas. Please contact us for help.

London Same Day (Order Before 1pm)

We offer a Same Day delivery service into London. The cost is £25.00 under 2Kg and £35 over 2Kg. Place your order before 1pm, deliveries are made Monday to Friday. Please note this option excludes bicycles.

More information on our Same Day delivery options.

Bike Deliveries

All our bikes are fully checked and tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for despatch. All you have to do is add the pedals, rotate and tighten the handlebars. Typically we can deliver your bike in 4 - 5 working days.

Deliveries are made Monday to Friday on a pre-12pm delivery. One of our customer service team will be in contact to arrange a convenient day for delivery.

More information on all our UK delivery options.

International Delivery

We ship to over 100 countries using Tracked Post or DHL for fast and reliable deliveries. To see delivery options and delivery times, please add your items to the basket and proceed to the checkout.

International customers have 30 days from their order date to return your order. Goods must be returned in new condition with all original packaging intact, undamaged and tags attached. For full details, see this link.

Free UK Returns

We offer a free returns service for our UK customers. Sigma Sport will happily refund or exchange any item purchased at Sigma Sport, excluding Sigma Sport gift vouchers and personalised products except when faulty.

More information on the Sigma Sport returns procedure.

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