absoluteBLACK Direct Mount Narrow Wide Chainring - SRAM Direct Mount - 3mm Boost - Oval - Gold - 9-12 Speed - 28T PDP|PLP|Brake Rotor Type and the innovative quarter-turn valves

and the innovative quarter-turn valves make it easy to quickly open and close the bleed system

Liner Included: These are a shell short so there is no liner included

Improvements from over previous models:

Rim height 19mm

Includes mounting bolts

absoluteBLACK Direct Mount Narrow Wide Chainring - SRAM Direct Mount - 3mm Boost - Oval - Gold - 9-12 Speed - 28T PDP|PLP|Brake Rotor Type and the innovative quarter-turn valvesabsoluteBLACK is dedicated to producing the world's finest oval chainrings and were the first to crack the code to discover the correct shape and 'clocking' to make an oval chainring work. They learned how to maximize the part of the stroke where power is produced and minimize resistance where it isn't. The oval shape smooths the delivery of power throughout the pedal stroke and improves efficiency and energy conservation. Many other brands have