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Our Premium 1X 104 & 64bcd Oval traction chainrings are designed for any cranks that use 104bcd mounting interface. This is the most common mounting standard for Shimano and other 4 arm cranks.
It is ideal for 1x 9/10/11/12spd and Singlespeeds. Oval (elliptical) narrow wide chainring does not compromise the work of clutch mechanism in rear derailleur. It also does not require chain tensioner when using in singlespeed application. Riding out of saddle on the uphill will become more pleasant. These chainrings also help you to recover after knee injuries as pedaling becomes smoother and less exhausting. It is the most advanced oval chainring currently on the market.
The most advanced, Patent Pending narrow/wide tooth profile ever produced, guarantee minimum 12 months of excellent chain retention capabilities! We mean it. Always use a new chain with a new chainring.
Advantages of our Special Oval chainrings:
32T chainring has build-in 2mm spacers and threaded holes (M8x0.75) to accommodate this size on spider. Other sizes have regular 10mm holes.
If you wish to check for frame clearance with new oval ring, below you can find measurement of biggest dimension of the oval (tip to tip of tooth):
32T: 143mm ; 34T: 151mm ; 36T: 159mm
How to mount 104 BCD Absolute Black Oval Narrow Wide Chainring:
There is a small mark (triangle shaped) on the inner circumference of the chainring. This mark must sit behind the crank arm.
Don't know what bolts to use with 32T oval chainring with integrated threads?
They are standard bolts. You can use a granny ring bolts (from 64bcd chainring) or use the ones that connect middle and big ring from 3X crank. You can also buy them from us in Bolts tab. Pick "Long" ones. Other sizes like 34 and 36T use "short" bolts.
WORLD'S BEST OVAL CHAINRINGS THAT HELP YOU INCREASE YOUR PERFORMANCE BY UP TO 9%*
absoluteBLACK is the largest mountain bike oval chainring manufacturer in the World with years of expertise in this field. We produce the highest quality, beautifully designed and engineered oval chainrings on the market with impeccable attention to detail.
Our studies led by the University of Primorska, Slovenia show significant differences when using absoluteBLACK Oval chainrings compared to round. Up to 9% increase of Force effectiveness, up to 7% less oxygen consumption, up to 15% less Ventilation (breathing) and up to 10% heart rate decrease when using oval chainrings versus round. What does that mean? In short, it means that you will consume less energy at the same power output using Oval chainrings so you can ride for longer and/or faster.
Why AbsoluteBLACK oval chainrings work?
AbsoluteBLACK oval chainrings deliver power more smoothly to your rear wheel. You will actually feel your pedal stroke to be more "round" with an Oval chainring than with a round chainring. This means you are better able to generate and maintain constant cadence. Because oval chainrings reduce the peak loads on knee joints.