absoluteBLACK OVAL Road/Gravel 110/4 2X Subcompact for 9100/8000/9000/6800 Chainring

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Product Description

absoluteBLACK introduces premium Gravel - Road 110/4 oval chainrings in Sub-compact (super compact) sizes to improve your climbing and cadence. Increased Cadence is key to reducing perceived effort. With 46/30T and 48/32T chainrings you can ride anywhere and climb anything. Alpine climbs will never be that difficult anymore. These special super compact chainrings are compatible with all Shimano 110/4bcd cranks making absoluteBLACK the only company on the market offering such sizes. 30 and 32T chainrings allow you to climb on your own terms with improved cadence and efficiency. Ready to try?

Size (Mass +/-1g):
30T (27g), 32T (30g), 46T (99g), 48T (110g) 

Dura-Ace 9100, R9150 Di2, Ultegra 8000, R8050 Di2, Dura-Ace 9000, Ultegra 6800, Shimano 105 - 5800, Tiagra 4700

Special bolts are included with 30T (2xM5 TI / 2xM7 AL)

Special bolts are included with 32T (4xM7 AL)

Material & Finish:
CNC machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing

Optimized to each size separately. 30T- 9% ; 32T - 8% ; 46/48T - 10-11.2% ; Timing of 108 -110.5° after TDC (top dead center) - Ideal for climbing. Patent Pending

Due to very special offset construction and custom bolts:

*30T can only work with 46T and special bolt set 46/30. (bolts included with small ring)

*32T can only work with 48T and special bolt set 48/32. (bolts included with small ring)

*No other combination or mix of rings will work. Due to special mounting construction, aesthetic bolt covers are not offered for this design

*We Only recommend Dura-ace 11spd chain or Sram Eagle 12spd chain for proper clearance of mounting tabs

Advantages of Absolute Black sub-compact Oval chainrings:
  • 30 and 32T chainrings allow you to climb on your own terms with improved cadence and efficiency
  • One of a kind special oval shape that helps you climb easier and faster (Patent Pending)
  • No more mashing on long climbs and wishing for bigger cassette.
  • Have you ever had to walk the climb on sportive race? These rings will save you from it.
  • 46/11 or 48/11 is still a big gear to push on the flat. For your daily ride you most likely don't need more
  • Your pedaling will feel smoother
  • AB oval reduces stress on knees and helps your legs remain fresher for longer
  • You will be able to maintain better cadence while climbing
  • Reduces possibility of leg cramps

What size should I choose?

*46/30T is best for great gravel adventures where lots of climbing is involved and bike is packed with gear. Or simply for you to actually enjoy road climbs like Sa Calobra in Majorca or Alpe d'Huez in France

* 48/32T is ideal for general road climbing and day to day riding. Planning L'Étape du Tour? This size is right for you (30T would be too slow).

How to mount super compact 46/30T & 48/32T 110/4 Oval chainrings:
First, you need to remove your crank from your bike. Once removed, unscrew the 4 bolts that hold two chainrings together with a T-30 torx key. Remove both original rings. For 46/30T - Start by placing big chainring on the crank. There is only one way to do it. Next locate triangular mark on inner circumference on the small chainring and make sure it will sit behind the crank. Small chainring has also integrated spacers on one side. Those spacers need to enter into the crank mounting holes. 30T chainring is provided with 2x M5 bolts (Torx T-25) and 2x M7 bolts (torx T-30). Lock both chainrings in place using provided bolts and torque M5 to 4-5Nm and M7 to 5-7Nm. For 48/32T - Same procedure applies except that 32T chainring comes with 4x M7 bolts (torx T-30).

Absolute Black always recommends using a new chain when fitting new chainrings.

This ground breaking construction has patents pending in several countries around the World. 

Occasionally, without notice, manufacturers change product design and/or specifications.

Chainring Guide


Chainring Guide

Chainrings are the link between your cranks and your chain. They come in many different sizes and bolt patterns to match the many different types of cranks available. The larger a chainring, the harder the gear, and conversely, the smaller the chainring, the easier the gear.

Most modern mountain bikes now use just one chainring, knows as one by or 1x. Most road bikes use two chainrings, known as double or 2x. There are also triple or 3x setups available. Hybrid bikes can use either road or mountain bike gearing. In this guide, we will show the things to note when upgrading or replacing your chainrings. If not attached directly to the centre of the crankset axle, chainrings will mount to a spider. This spider can be different sizes depending on the crankset, known as BCD. The spider can also use different amounts of bolts to secure the chainring.

Narrow/Wide chainrings

Modern mountain bikes, many gravel bikes and now even some road bikes have only a single chainring. With the advent of very large cassettes, it is possible to get the range of gears once offered by a double chainring crankset with a single chainring setup.

There are many advantages to using only a single chainring. There is less weight as there is no need for a second chainring, a front derailleur, or a front shifter. There is also the practical advantage with fewer components there is less to go wrong or maintain. The key to a 1x drivetrain is the use of a narrow/wide chainring.

Narrow Wide Chainring

A narrow/wide chainring uses alternating narrow and wide teeth that grip the chain onto the chainring. This technology has almost eliminated dropped chains. Most riders will not use a chain device as the chain retention is so secure. Please note a narrow/wide chainring will only work with a 1x set up. The narrow/wide teeth that grip the chain will not allow the chain to shift to a second chainring. double and triple chainrings have ramps built in to aid with shifting.

Double and Triple Chainrings

Double and triple chainrings are specific to their use and include ramped sections around the ring that help guide the chain either up or down onto the next cog when pushed by the derailleur.

Some chainsets have one bolt area that mounts both chainrings with the same bolts. Others have one bolt area for the outer and another smaller bolt area for the inner chainring. When replacing, please ensure that the replacement is for a double or triple crankset to ensure compatibility, along with the correct BCD and amount of arms on the spider.

Double and Triple Chainrings

Oval Chainrings

Oval chainrings are designed to create a smooth power delivery and increase your pedalling effectiveness. Oval chainrings maximize the part of the stroke where power is produced and minimize resistance where it isn't. Riders who spend a lot of time climbing will feel the advantages of using an oval chainring.

Oval Chainrings

Riders that use a double chainset can use two oval chainrings or just the one. For example, some riders might want an oval outer ring with a standard round inner. It is recommended to purchase an oval chainring with the same teeth as your prefered round chainring. Again BCD and bolt count govern the compatibility of an oval ring with your crankset. Oval chainrings are now available in most common sizes.

BCD and Direct Mount

Before choosing your next chainring, you will need to know the BCD (sometimes known as PCD) and how the chainring is attached. Firstly look at how the chainring is attached, does it use bolts, if so how many. If it does not use bolts, then it will be a direct mount chainring.

Once you know the number of bolts then you will need to know the BCD of the chainring. BCD is the distance between the bolts, please also note if there is a symmetrical bolt pattern or an asymmetrical bolt pattern. For example, chainrings for a Shimano 105 R7000 road chainset use four-bolt asymmetrical 104 BCD chainrings.

BCD and Direct Mount

Direct mount chainrings do not use a spider or bolts to attach the chainring. The chainring mounts directly to compatible cranks. Each crank manufacturer has a different pattern to the direct mount spline and is unique to the manufacturer. For example, a RaceFace direct-mount chainring will only fit RaceFace cranks. A direct mount chainring cannot be mounted to a crank that does not support direct mount.

Delivery & Guarantee

UK Delivery Information

International Deliveries – Temporarily Suspended 11/11/20

Note: We are still offering deliveries to the Isle of Man, Scottish Highlands, Scottish Islands, Channel Islands, Isle of Wight, Jersey and Guernsey. 

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Please note on the TNT tracking app it may show your delivery status as ‘Collecting’ (as per image below). This means your delivery has left our warehouse and is currently held at TNT main depot and there could be up to a 48 hour delay.

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Please keep checking the TNT tracking for further updates. On behalf of TNT we apologise for any delay and inconvenience this may cause. 

We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.

Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.

Please note that Pre-Order dates can sometimes change due to updated stock information.

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Returns & Warranty

It's easy to return a product with our 365 day, hassle free returns. 

We will give you a full refund on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).

Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.

If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.

For more information please visit our Returns & Warranty page.