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absoluteBLACK Oval Boost Chainring for Cannondale

Niel Ubod July 16, 2024


Premium oval MTB chainring for Cannondale Hollowgram cranksets

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absoluteBLACK Oval Boost Chainring for Cannondale

The absoluteBLACK Oval Boost Chainring for Cannondale is a lightweight, stiff chainring made from 7075-T6 aluminum. It is compatible with Cannondale Hollowgram cranksets and both Ai/FS-i and non-Ai/FS-i frames. 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. Of course, it also looks amazing – like no other MTB chainring out there!


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


  • Crankset: Compatible with Cannondale Hollowgram Si, SISL, SiSL2 and FSA SL-K, afterburner and Comet cranksets
  • Chain: These chainrings are designed to work with all 9-speed, 10-speed, and 11-speed chains. They also work with 12-speed Eagle and 12-speed KMC chains
  • Frame: Compatible with Ai/FS-i and non-Ai/FS-i frames. For non-Ai/FS-i frames, you will need to adjust the spacers on the drive-side of your bike as this chainring uses 3 mm less offset than the original non-Ai Cannondale chainring/spider


  • Color: Black
  • Interface: Cannondale Hollowgram Direct Mount
  • Offset: 3 mm
  • Chainline: 52 mm Boost
  • 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)
  • Material: CNC machined 7075 aluminum
  • Weight: 30T - 61 grams | 32T - 66 grams | 34T - 72 grams

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