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absoluteBLACK Oval Boost PVD Rainbow Chainring for Shimano 12-Speed

Power Meter City September 29, 2022


An incredibly beautiful chainring for Shimano direct mount MTB cranksets!

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absoluteBLACK Oval Boost PVD Rainbow Chainring for Shimano 12-Speed

The absoluteBLACK Oval Boost PVD Rainbow Chainring for Shimano 12-Speed is the most amazing looking chainring we carry! Using a special titanium coating process, the chainring is very durable and incredibly beautiful. Compatible with Shimano direct mount MTB cranksets and made from 7075-T6 aluminum, the chainring is also lightweight and stiff. Featuring a narrow-wide teeth profile and one of a kind special oval shape, this ring will make you ride faster while also increasing traction.

Please note: Due to the nature of PVD process, every chainring is unique and color may vary. Not a single chainring is the same which makes your new ring completely individual.


Advantages to aB Oval MTB Chainrings

  • Excellent weight to strength ratio
  • One of a kind special oval shape
  • Greatly improves traction and climbing abilities
  • Unique Patent Pending narrow-wide teeth profiles to keep your chain in place for minimum 12 months!
  • Special 3D teeth machining for ultimate mud relief, decreased wear and noise
  • Superb quality and great look
  • Reduces stress on the knees


  • Compatible with Shimano XTR M9100, M9120, M9130, XT M8100, M8120, M8130, SLX M7100, M7120, M7130, Deore M6100, M6120, M6130 and FC-MT900 cranksets.
  • Compatible with Shimano 12-speed Hyperglide+ chains


  • Color: PVD Rainbow
  • Ovality: Optimized to each size. Range of 10.2-14.4%
  • Timing: Optimized to each size. Range of 110.5-116.3° after TDC (top dead center)
  • CNC machined 7075 aluminum

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