Optimised around seamless gear shifting and smoother pedal efficiency, Absolute Black's Premium Race Oval SRAM Outer Chainring will make challenging hill climbs more appealing. With a machine-cut-out free design, this enables the implementation of a ramp and recess mould to aid in smooth chain and gear shifting transitions. In addition, the risk of cramps is eliminated so you can keep motivated with a higher speed average whilst pushing up those hills.
Absolute Black Premium Race Oval SRAM Outer Chainring
Absolute Black Premium Race Oval SRAM Outer Chainring
Delivering exceptional riding performance and smooth gear transitions is Absolute Black's Premium Race Oval SRAM Outer Chainring. Ideal for hill climbs, this chainring has been designed to give effortless pedal efficiency, keeping your legs feeling fresh whilst tacking challenging ascents.
It has been proven that oval chainrings utilise more muscle groups within the legs, reducing peak loads and stress during the gyroscopic pedal motion. Overall, the elliptical shape feels much rounder and natural compared to standard chainrings, enabling less strain on muscle groups within the legs for maintained maximum effort and increased speeds for longer durations.
If that isn't motivating enough, how about smoother gear shifting? Developed with smooth angled surfaces on the rear of the chainring, and utilisation of a ramp and recess design, this Premium Race Oval Chainring ensures seamless gear shifting. This is combined with six up shifting rams and 12 downshifting points that deliver even more efficiency and chain stability.
This simple sleek design is an excellent motivator for hill climbs and doesn't require any modifications. Simply fit and ride.
Stuck on choice?
50T outer chainring: Choose this size if you ride for pleasure or sportive events. This is the most versatile and comfortable size.
52T outer chainring: If you race and feel strong, it's the classic outer chainring size and a great option for experienced riders.
Compatibility: SRAM cranks that have one hidden chainring bolt behind the crank arm: SRAM Red, Red eTap, Red22, Force1, Force22, Rival, Rival1. Compatible with Quarq.
Bolts: Reuse original SRAM bolts except for the hidden bolt. AB Outer chainring comes with the hidden bolt in the package.
Note: Sold as a singular chainring, does not include crank arm or inner chainring.
- Material: CNC machined 7075 Txxx aluminium, type 2 anodising
- Attachment: 5 bolt, 110 BCD
- Long lasting construction
- Six upshifting ramps
- 12 downshifting points
- Smooth angled surfaces
- Ram and recess solution
- Optimised to each size separately
- Doesn't require front derailleur modification
- Ideal for road climbs
- SRAM compatible
PRODUCT REF: ROS-5BOLT
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 SigmaSport.co.uk 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. For Highlands and Islands, please allow up to 5 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.
* 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.
** 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 the store, collect in up to 7 days (sometimes quicker) if in stock at warehouse.
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.
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 7 - 10 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 and Returns
We ship to over 100 countries using DHL for a fast and reliable delivery. To see the delivery cost, please add your items to the basket and proceed to the checkout.
International customers have 30 days from their order date to return the order. Goods must be returned in new condition with all original packaging intact 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.
Please alert me via email when this product is back in stock.