AbsoluteBLACK Shimano R91000/R8000 Oval Road Chainring
Usually dispatched within 24 hours
4 instalments of £8.71 with clearpay
6 weekly payments from £5.80 with laybuy
Average connection time 25 secs
Average connection time 25 secs
absoluteBLACK Premium Shimano 110/4 bcd compatible oval chainrings are designed for new type of Shimano cranks Dura-Ace 9100 & Ultegra 8000 only. These are finest oval chainrings on the market in terms of shifting, smoothness of pedaling and manufacturing quality. (They can be also retrofitted to 9000 and 6800 cranks). 10/11/12spd compatible.
- 34T (31g)
- 36T (37g)
- 38T (41g)
- 39T (42g)
- 50T (120g)
- 52T (137g)
- 53T (139g)
Compatibility:Shimano Dura-Ace 9100, R9150 Di2 and Ultegra 8000, R8050 Di2. They can also retrofit 9000 and 6800 cranks but use bolt covers for best appearance. 10 / 11 / 12spd compatible.
Materials: CNC machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing
Mounting: 110 BCD x 4
Ovality: Optimized to each size separately. 34T- 6.5% ; 36T, 38T, 39T- 11.4%, 50/52/53T - 10-11.2% ; Timing of 108 -110.5° after TDC (top dead center) - Ideal for road climbing. Patent Pending.
Advantages of Absolute Black Road Oval chainrings:
- One of a kind special oval shape that helps you climb easier and faster (Patent Pending)
- Over 15% stiffer than Rotor Qrings due to thicker, 5mm construction
- Bespoke Absolute Black 6 point ramp and recess shifting design shifts better than any other brand and model of oval chainring
- Finest design that provides excellent strength to weight ratio
- You will not "feel" the oval shape while pedaling
- Your pedaling action will feel smoother
- Helps reduce stress on knees and helping your legs remain fresher for longer
- You will be able to maintain better cadence while climbing
- Reduces possibility of leg cramps
- You will reduce chainring/cog shifts by at least 15%
IMPORTANT: amps on big rings are specially configured for combinations: 50/34, 52/36, 52/38, 53/39T. If you wish to use other configuration it will also work, but shifting will be slower and may require more "adjustments" of front dérailleur to be acceptable. Also remember that front dérailleur can only accept max 16T difference between 2 chainrings - this is how Shimano and Sram designed them.
How long will it take to arrive?
Please check the stock availability notice on your item when placing your order. This item is: In stock.
If ordered before 11pm, delivered by courier next working day.
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Top Customer Reviews
Where reviews refer to foods or cosmetic products, results may vary from person to person. Customer reviews are independent and do not represent the views of The Hut Group.
Just awesome, they are super for flats and hills. It’s so smooth and it feels like you have three lower and three higher gears. So you can get a faster cadence on hills and more power on the flats. Better than duraace, 52/36 is perfect for me but 52 can be tough for less power go 50/34. With circular I could get to 30 mph on a flat with a 52, with vials I get to 33 mph with the same power. They are so good it feels like cheating!
Incredible piece of engineering ! Pedaling is more efficient, holding watts and cadence has never been easier. Going farther and quicker with no extra effort. And they are beautiful ;-) Love my ovals.
Will not fit stage power meter
The chainring is great and look great but doesn’t fit stage power meter (right side obviously). I had to re-machined the ring in order to accommodate the head of the stage power meter. AB should have looked into it when designing the ring. Beside that, it is very nice, light and well made. I will need a bit more time to see if it improves anything on the performances side.