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These Premium Shimano 110/4 bcd compatible oval chainrings are designed for Shimano cranks like Dura-Ace 9000 Ultegra 6800 105- 5800 and others. These are finest oval chainrings on the market in terms of shifting smoothness of pedaling and manufacturing quality. Not compatible with FSA cranks.
| Size (Mass +/-1g): | 50T (120g) 52T (137g) (53T – go to 9100 model) |
| Color | Black |
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Compatibility |
Shimano Dura-Ace 9000 Ultegra 6800 Shimano 105 5800 Tiagra 4700. Compatible with Di2 & Pioneer SRM and other power meters* |
| BOLTS | For Outer chainring please order Long bolts OR Bolt Covers
Changing Inner chainring to oval only? use original bolts |
| Material & Finish | CNC machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing |
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Ovality |
Optimized to each size separately. 34T- 6.5% ; 36T- 11.4% 38T- 11.4% 50/52 – 10.3% ; Timing of 108 -109.5° after TDC (top dead center) – Ideal for road climbing. Patent Pending |
Absolute Black always recommends using a new chain when fitting new chainrings.
*34t Premium Series inner chainring is not compatible with power meters that use circular spider (SRAM Quarq Power2Max etc). For those power meters please choose our Silver Series 34t inner oval.
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 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 the possibility of leg cramps
*You will reduce chainring/cog shifts by at least 15%
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