Absolute Black Round Road Chainring 2X 110/4 Shimano 9100/8000 (34T/36T/38T/39T)-Black

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

Important:

• 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 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.
• Absolute Black always recommends using a new chain when fitting new chainrings.

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 crisp as original
• Finest design that provides excellent strength to weight ratio 

How to mount 110/4 Absolute Black Round 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. Locate the new inner chainring with the triangular timing indicator positioned behind 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 cranks 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 set of Bolt covers (buy bolt covers that are right for your crank model). Tighten all four bolts with force of about 5-7Nm. Mount your crank back to the bike. If you were changing outer ring size - you need to also adjust front dérailleur.

Key Features

• Compatibility: Shimano Dura-Ace 9100 / 9000, Ultegra 8000 / 6800, and 105 R7000 cranksets

• BCD Standard: 110/4 bolt circle diameter for Shimano 4-bolt road cranksets

• Speed Compatibility: 10 and 11 speed drivetrains

• Chainring Options: 34T / 36T / 38T / 39T

• Material Construction: Precision machined aluminum for durability and lightweight strength

• Thickness: 5mm design for improved stiffness and efficient power transfer

• Shifting Design: Bespoke Absolute Black 4 / 6 point ramp and recess system for crisp shifting

• Manufacturing: Made in the EU with high precision CNC machining

• Visual Design: Premium finish with a distinctive aftermarket performance look

Product Specifications

• Product Type: Road Bike Inner Chainring

• Brand: Absolute Black

• BCD: 110mm (4 Bolt)

• Chainring Sizes: 34T, 36T, 38T, 39T

• Compatibility: Shimano Dura-Ace 9100/9000, Ultegra 8000/6800, 105 R7000

• Speed Compatibility: 10 Speed / 11 Speed

• Material: CNC Machined Aluminum

• Construction Thickness: 5mm

• Color: Black

• Manufacturing Location: EU

Performance & Shifting Engineering

Absolute Black chainrings are engineered with advanced ramp and recess shifting technology that closely replicates the shifting performance of original manufacturer chainrings. The precisely designed shifting ramps allow quick and smooth transitions between chainrings under load, maintaining drivetrain efficiency during aggressive riding or climbing.

Big chainring ramps are specifically configured for optimized combinations including 50/34, 52/36, 52/38, and 53/39 setups. Other configurations can still function but may require additional front derailleur adjustment and may result in slightly slower shifting. For best performance, front derailleur setups should maintain a maximum 16T difference between chainrings as recommended by drivetrain manufacturers.

Easy Operation / Usage

Installing the Absolute Black Round Chainring is straightforward with the correct tools and setup process.

• Remove the crankset from the bike before installation

• Unscrew the four chainring bolts using a T-30 Torx key

• Remove both original chainrings from the crankset

• Align the new inner chainring with the triangular timing indicator behind the crank arm

• Ensure recessed bolt holes face outward so the nut heads sit flush

• Mount the outer chainring in its correct orientation (fits only one way on newer crank arms)

• Tighten bolts with 5–7 Nm torque for secure mounting

• Reinstall the crankset and adjust the front derailleur if chainring sizes have changed

For optimal drivetrain performance, it is recommended to install a new chain when fitting new chainrings.

Why Choose This Product

• Premium aftermarket chainring engineered for precise shifting performance

• Strong 5mm thick construction for superior stiffness and durability

• Excellent strength to weight ratio for efficient power transfer

• Advanced ramp design ensures crisp gear transitions

• Compatible with a wide range of Shimano road cranksets

• High precision CNC machining for long-term reliability

• Distinctive premium look that enhances bike aesthetics

• Manufactured in the EU with strict quality standards

In the Box

• Absolute Black Round Road Chainring (Selected Size)