Absolute Black Oval Dura-Ace R9100/Ultegra R8000 Outer Road Chaining - 110BCD
In stock: Dispatched in 1-2 working days
The Absolute Black Oval Dura-Ace R9100/Ultegra R8000 Outer Road Chainings are designed for Shimano Dura-Ace 9100 & Ultegra 8000 cranks only.
These are finest oval chainrings on the market in terms of shifting, smoothness of pedalling and manufacturing quality. (They can be also retrofitted to 9000 and 6800 cranks).
- Size (Weight): 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.
- Speed compatibility: 10 / 11 / 12spd compatible.
- Materials: CNC machined 7075 Txxx Aluminium. Long-lasting construction. Type II anodizing
- Mounting: 110 BCD x 4
- Ovality: Optimized to each size separately. 50/52/53T - 10-11.2%
- Timing of 108 -110.5° after TDC (top dead centre) - 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 Q rings 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 pedalling
- Your pedalling 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%
Ramps 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 derailleur to be acceptable.
Also remember that front derailleurs can only accept max 16T difference between 2 chainrings - this is how Shimano and Sram designed them.
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