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AbsoluteBlack Sram Oval Direct Mount BOOST148
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The Original one and only absoluteBLACK premium Sram compatible Direct mount BOOST148 1X Oval chainrings are designed for GXP and Long BB30 spindle cranks. Chainring is dedicated for Boost148 bikes ONLY. Converts a regular Sram crank into a Boost specific setup. (3mm offset). They are also 100-percent optimized for Eagle.

Advantages of our special Direct mount Boost chainrings:
*Finest design to provide excellent weight to strength ratio
*One of a kind special oval shape (Patent Pending)
*Greatly improves traction and climbing abilities
*Unique Patent Pending alternate wide and narrow teeth profile to keep your chain in place for minimum 12 months!
*Special 3D teeth machining for ultimate mud relief decrease wear and noise dramatically
*They save weight because they don't need the spider and chainring bolts.
*The ability of installation of a smaller ring sizes that can't be mounted on regular spider.
*Superb quality and great look.
*You will ride faster using ovals. If you keep using round ring then others will get quicker.
*You will not "feel" the oval shape at all
*Reduces stress on knees
*We mastered our oval chainrings to perfection, so you can get best possible advantage from the oval/elliptical shape.

The importance of timing and shape with oval chainrings
The oval chainring movement across all cycling disciplines is growing rapidly, led by absoluteBLACK, the world leaders in this important product category.

However, not all oval chainrings share the same performance characteristics as absoluteBLACK. The 'clocking' (timing) and shape of the oval are the most crucial parts of any oval chainring design, absoluteBLACK spent three years in design development and have perfected both timing and shape design elements - ensuring the ride quality of absoluteBLACK oval ring will be different and superior to ovals from other brands (as many abosluteBLACK customers already realised).

Where most other brands retain the same timing (position of the crank arm relative to the oval) and shape of the oval across all their sizes - because it's cheaper and less time consuming. absoluteBLACK believe that each different size ring requires a bespoke, optimised, perfect pedalling solution. So that is what we do - for every chainring absoluteBLACK make. For example, the smaller the chainring size, the bigger the ovality has to be to help climb steeper hills more effectively. We keep our exact Patent Pending data a secret, to ensure we get the best possible absoluteBLACK advantage over other brands, and you get the best possible ride experience.