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Absolute Black > Road chainrings > Absolute Black Sub Compact 110/5 BCD

Absolute Black Sub Compact 110/5 BCD

$113.99
-
$169.99 CAD
Absolute Black
 

Absolute Black Sub Compact 110/5 BCD

Item#PriceStock
32T + Bolts Black
#: ROV32/5BK
Price: $113.99
Stock: In stock
ROV32/5BK$113.99In stock
48T Black
#: ROV48/5BK
Price: $169.99
Stock: In stock
ROV48/5BK$169.99In stock
48T Grey
#: ROV48/5GR
Price: $169.99
Stock: In stock
ROV48/5GR$169.99In stock


Overview

absoluteBLACK introduces premium Gravel - Road 110/5 oval chainrings in Sub-compact (super compact) sizes to improve your climbing and cadence. Increased Cadence is key to reducing perceived effort. With 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 majority of 110/5bcd cranks making absoluteBLACK the only company on the market offering such sizes. 32T chainring allow you to climb on your own terms with improved cadence and efficiency. 10/11/12spd compatible. Ready to try?

Advantages of Absolute Black sub-compact Oval chainrings:
  • 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.
  • 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
The most advanced, Patent Pending narrow/wide tooth profile currently produced, guarantee minimum 12 months of excellent chain retention capabilities! We mean it. Always use a new chain with a new chainring.
Not convinced yet? Read what other customers write.
Specs
  • Size (Mass +/-1g): 32T (32g), 48T (115g) Smaller rings are not possible in 110/5bcd
  • Color: Black, Grey, (inner ring in black only)
  • Compatibility: Shimano Dura-Ace 7950, Ultegra 6750, Shimano 105- 5750, Tiagra 4650, FSA, Praxis Alba & Zayante, S-works and many older cranks. ALSO fits Sram cranks that have 1 hidden chainring bolt like Force22, Rival22 but they need to have removable spider. Compatible with Di2.
  • Bolts: pecial bolts are included with 32T (5xM5 TI)
  • Material & Finish: cnc machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing
  • Ovality: Optimized to each size separately. 32T - 8% ; 48T - 10.9% ; Timing of 108 -110.5° after TDC (top dead center) - Ideal for climbing. Patent Pending
IMPORTANT
Due to very special 2.5mm offset construction of BOTH chainrings towards the frame and custom bolts 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 / Ultegra 11spd chain or Sram Eagle 12spd chain for proper clearance of mounting tabs
  • Absolute Black always recommends using a new chain when fitting new chainrings.
  • SRAM Yaw front derailleur compatibility – Due to the construction of SRAM Yaw front derailleurs, our Sub Compact chainrings are not compatible with them. If you replace your Yaw front derailleur with a Shimano equivalent (there are no indexing issues between Shimano FD and SRAM shift levers) you will be able to use our Sub Compact chainrings.


All Absolute Black products are designed in UK and manufactured in Poland (EU) to the highest standards of quality.
 
Why Oval

Why our oval chainrings work
Our traction Oval chainrings work because a rider does not produce power evenly through a pedal stroke; they maximize the part of the stroke where power is produced and minimize resistance where it isn't. Oval rings make the spin cycle a lot smoother and are easier on legs while climbing. Believe it (or not), but a round chainring doesn't transfer torque to your rear wheel as smoothly as an Oval one. You will actually feel your stroke to be more "round" with an Oval shape than with a round chainring.

Why it matters
Traction, Traction and Traction. With oval rings rear tire traction improves greatly on loose and slippery terrain. Smoother power delivery to your rear wheel means that you will be able to maintain better, constant cadence; get less stress on the joints (knees) and therefore be able to keep certain level of effort for longer. This results in higher average speed. Moreover, 11 studies made by various Universities in the World show that using oval chainrings human legs utilize more muscle groups (compared to round one), but each of them to lesser degree. Load from pedaling an oval chainring is spread over greater muscle mass which in effect gives you the feeling of fresher and more relaxed legs. It is world's finest oval chainring backed by tens of thousands of customers.
Technology
 
Word on BIOPACE
Please understand that this is not Biopace technology. Shimano created Biopace with the completely wrong orientation of the biggest radius of the oval. Instead of positioning it in power zone which is slightly below the level of the crank, they clocked it to the dead zone where human generates least power. The result was that in power zone pedaling was too easy and in dead zone very difficult. Exactly opposite to how it should be.

Round rings do not optimize the way humans produce power

Other elliptical chainrings
Clocking (timing) and shape of the oval are the most crucial parts of the design. Ride quality of Absoluteblack Oval ring will be different to ovals from brand X or Y. 2 years of development of our ovals resulted in commercially most successful product of its kind. AbsoluteBlack is the First company who managed to successfully popularize ovals in mountainbike sport. Please note: Other manufacturers offer one timing and ovality setting for all chainring sizes, but pedaling behavior changes with each size considerably. To optimize for this, every chainring size needs to be a bit different. For example the smaller the chainring size the bigger the ovality has to be to help climb steeper hills more effectively. This is where we specialize in and optimize every size to particular pedaling style. This is also why we do not provide information about timing and exact ovality of the chainring as each one is different.

 

Shifting quality and technology
Both, inner and outer oval chainrings are optimized with smooth shifting in mind. This is why the back of the Absolute Black Oval road chainring does not feature cutouts, like other oval products on the market. Instead, we design smooth angled surfaces, to help chain to slide quickly and precisely between chainrings. Absolute Black outer oval chainrings have 6 up-shifting ramps, for easy and quick gear change, even under load. Each outer chainring also features 12 down-shifting points. Instead of steel shifting pins we use a CNC machined "ramp and recess" solution. Special raised ramps work in conjunction with the tooth recesses to stabilize the chain when shifting. Our oval chainrings DO NOT require any modification to the front dérailleur in order to work properly (apart from small standard adjustment)

How Absolute Black Oval Rings Shift
 
The importance of timing and shape with oval chainrings
The oval chainring movement across all cycling disciplines is growing rapidly, led by absoluteBLACK, the world leaders in this important product category.

However, not all oval chainrings share the same performance characteristics as absoluteBLACK. The 'clocking' (timing) and shape of the oval are the most crucial parts of any oval chainring design, absoluteBLACK spent three years in design development and have perfected both timing and shape design elements - ensuring the ride quality of absoluteBLACK oval ring will be different and superior to ovals from other brands (as many abosluteBLACK customers already realised).

Where most other brands retain the same timing (position of the crank arm relative to the oval) and shape of the oval across all their sizes - because it's cheaper and less time consuming. absoluteBLACK believe that each different size ring requires a bespoke, optimised, perfect pedalling solution. So that is what we do - for every chainring absoluteBLACK make. For example, the smaller the chainring size, the bigger the ovality has to be to help climb steeper hills more effectively. We keep our exact Patent Pending data a secret, to ensure we get the best possible absoluteBLACK advantage over other brands, and you get the best possible ride experience.
 
Installation
 
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.
 
 
FAQ
 
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).

*IMPORTANT
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

Remember when selecting your chainring sizes - it's not about what others use, but about ensuring YOUR ability to maintain a comfortable and effective cadence across the terrain you ride most often. If you ride chainrings that are too large (round or oval), your cadence will be lower. This can affect your performance by prematurely tiring your legs and possibly lead to stress injury in your knee joints.

Do I have a perfect pedal spin?
This is an important one. Professionals and semi pro cyclists spin perfect "circles". The rest of us often struggle with our pedalling action, simply because we don't spend every day of every week on the bike, to master this skill. Switching to oval rings effectively correct an imperfect pedalling action – delivering the smooth power delivery the pros developed through thousands of hours of training. One of the key reasons the benefits of oval chainrings have historically proven hard to prove in lab tests, is because they were nearly always done using Professional riders – as a user group they are the least likely to gain a performance increase from a switch to oval, as their pedalling is already close to perfection. Where ovals shine however is with rest of us, who ride for pleasure and not for a job. Simply 99% of road cyclists will benefit from having oval chainrings on their bikes.
 
 
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