Absolute Black Round Road Chainring 2x 110/4 BCD Shimano for R9100 & Ultegra R8000 & 105 R7000

Absolute BLACK Premium Shimano 110/4 BCD compatible ROUND chainrings are designed for new and old Shimano cranks like Dura-Ace 9100, 9000, Ultegra 8000, 6800 & 105 R7000, and more. These are the finest round aftermarket chainrings in shifting, stiffness, and manufacturing quality. 10/11/12spd compatible.

Features:

• Ramps on big rings are specially configured for combinations: 50/34, 52/36, 52/38, 53/39, T
• 34t Premium Series inner chainring is incompatible with power meters that use circular spiders (SRAM Quarq, Power2Max, etc.). Please choose our Silver Series 34t inner oval for those power meters.
• If you wish to use another configuration, it will also work, but shifting will be slower and may require more "adjustments" of front dérailleur to be acceptable. Also, remember that the front dérailleur can only accept a max 16T difference between 2 chainrings - this is how Shimano and Sram designed them.
• Absolute Black always recommends using a new chain when fitting new chainrings.

*Note: Images are for representational purposes only. Actual size/packaging varies with product type/size.

Advantages of Absolute Black Road Round Chainrings:

• One-of-a-kind look
• Super stiff design due to thicker, 5mm construction
• Bespoke Absolute Black 4 / 6 point ramp and recess shifting design shifts as crisply as original
• Finest design that provides an excellent strength-to-weight ratio

How to Mount 110/4 Absoluteblack Round Chainrings:
First, you need to remove your crank from your bike. Once removed, unscrew the four bolts that hold two chainrings together with a T-30 Torx key. Remove both original rings. Locate the new inner chainring with the triangular timing indicator behind the crank arm. The bolt holes on the small chainring are recessed – so the nut heads will sit flush with the surface of the chainring - these recesses should face you when mounting the bolts. Absolute Black outer chainring has a specific shape of mounting tabs, so it will only fit one way on the new version of crank arms (for older cranks, locate the recess on the chainring behind the crank arm). If you are only changing the inner chainring - use the original bolts that came with your crank. If you are replacing a pair of rings, you will need a set of regular ‘double’ chainring bolts or our collection of Bolt covers (buy bolt covers that are right for your crank model). Tighten all four bolts with a force of about 5-7Nm. Mount your crank back to the bike. If you were changing the outer ring size - you also need to adjust the front dérailleur.

Specifications

• Size (Mass +/-1g): 34T (30g), 36T (38g), 38T (43g), 39T (45g), 50T (114g), 52T (129g), 53T(136g)
• Color: Black, Grey (inner ring in Black only)
• Compatibility: In short, EVERY Shimano 4 bolt crank. Shimano Dura-Ace 9100, R9120, R9150 & R9170 Di2 & all 9000 series, Ultegra 8000, R8020, R8050 & 8070 Di2 & 6800, 105- R7000, R7020, R7070, 5800, 4700. Di2 compatible. 10 / 11 / 12spd compatible. Use bolt covers for the best appearance.
• BOLTS: For the Outer chainring, please order "Long bolts" from our Bolt OR us Covers Changing Inner chainring only. Use original bolts
• Material & Finish: CNC machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing

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