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AbsoluteBLACK Oval Cyclocross 1x Chainring for Shimano Cranksets

Regular price $ 49.99
Regular price $ 81.95 Sale price $ 49.99
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AbsoluteBLACK makes some of the finest oval chainrings available. This model is designed for 1x, single-chainring cyclocross drivetrains and features a bolt pattern designed for popular Shimano cranksets.  

Many athletes are switching their cyclocross and gravel bikes to 1x drivetrains to simplify maintenance and save weight. This ring was designed specifically for the mud and wet of cyclocross with special 3D machined teeth for mud shedding and to reduce noise. 

Why Oval? Asymmetrical (elliptical) rings work because riders don't produce power evenly throughout the pedaling stroke. Oval chainrings help normalize that power delivery to the drivetrain, so you go faster with less fatigue. A more consistent cadence can also improve rear tire traction on loose, slippery terrain. 

  • Designed and manufactured in Europe
  • Narrow-wide design for excellent chain retention
  • Beautiful CNC machined 7075 Aluminum construction with a long-lasting black anodized finish
  • Ring is offset 1.5mm toward the center-line of your bike for perfect chainline
  • Weight: 60-70 grams, depending on size
  • includes bolts 


Works with Shimano 4-bolt "road" cranksets including Dura-Ace 9100, 9120, 9000, 9020, Ultegra R8000, 8020, 6800, 105 R7000, 7020, 5800, and Tiagra 4700. Works with 10, 11, and 12 speed chains including Eagle. Does not work with GRX cranksets. 


Remove the original chainring(s) from your crankset. Position the AbsoluteBLACK oval replacement chainring in the space where the big chainring was (outside position). The small triangle mark on your new AbsoluteBLACK chainring sits behind the crankarm. Install using the bolts included with the new chainring and a T-30 torx wrench (not included) with a force of 5-7Nm. Always use a new chain with a new chainring.


Free shipping on orders over $50 with delivery to the 48 continental United States. More shipping methods and rates.

Return Policy

Return any new and unused item for a full refund (less shipping charges) within 30 days of your purchase. See full return policy.

Expert Guidance

Call or text (909) 283-3391 for questions or help, anytime.

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