Features: Optimized pedal stroke

protein bar

standard length

Made of thin steel and are nickel plated and heat treated for long use

Waterproof Rating: Waterproof (IP66)

absoluteBLACK Direct Mount Narrow Wide Chainring - SRAM Direct Mount - 3mm Boost - Oval - Black - 12 Speed Shimano - 30T Envelope Shipping Features: Optimized pedal strokeabsoluteBLACK 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