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Merlin Cycles£49.95Visit shop Absoluteblack Black Absolute Oval 104Bcd Chainring - / 30 / 4 Arm, 110Mm / 12 Speed
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The AbsoluteBLACK Oval 104BCD Chainring is designed for mountain bikers looking to optimize their pedaling biomechanics and improve traction during technical climbs. By utilizing an ovalized shape, this chainring helps smooth out the power stroke, reducing knee strain and providing more consistent torque; however, riders transitioning from circular rings may require a short adjustment period to adapt to the unique pedal feel.
| Model Part Number | OV30BK |
|---|---|
| Brand | AbsoluteBLACK |
Many riders find that the oval shape reduces knee stress by smoothing out the power stroke and eliminating the abrupt tension peaks associated with round chainrings.
No, the precision-engineered narrow-wide tooth profile is designed to provide sufficient chain retention for most mountain biking applications without a guide.
Yes, this chainring is fully compatible with 10, 11, and 12-speed drivetrain systems.
The 104BCD (Bolt Circle Diameter) standard measures the distance between the center of one chainring bolt hole to the center of the adjacent bolt hole, which should be approximately 73.6mm.
Most riders notice a different feeling for the first few minutes of use, but the majority adapt completely within one or two rides and no longer perceive the shape difference.
Verify that your rear derailleur clutch is engaged and that the chain length is correctly sized for the oval ring.
Ensure the chain is properly lubricated and check that the chainring mounting bolts are torqued to the manufacturer's specification.
Check that the chainring orientation marks are correctly aligned with the crank arm and verify the chain is compatible with your 10, 11, or 12-speed system.
Installation follows standard 104BCD mounting procedures; ensure your crankset is compatible with the 104mm bolt circle diameter before attempting installation. The ring is designed to be used in a 1x drivetrain configuration. When installing, ensure the timing mark on the chainring is aligned correctly with the crank arm to ensure the ovalization cycle is properly indexed. To maintain the chainring, clean it regularly with a mild degreaser and a soft brush to remove grit from the 3D-machined teeth, which helps prevent premature chain wear. Always check that your chain length is adjusted appropriately for the specific tooth count of the oval ring to ensure optimal shifting and tension.
