absoluteBLACK Direct Mount Narrow Wide Chainring - SRAM Direct Mount - 3mm Boost - Oval - Black - 9-12 Speed - 30T PDP|Colour and this is one of

and this is one of their most useful

Oakley extended the field of view in the upper peripheral region to optimise it for cycling

Spoke hole count: 32H spoke count

Hollow Pin Construction: Yes

absoluteBLACK Direct Mount Narrow Wide Chainring - SRAM Direct Mount - 3mm Boost - Oval - Black - 9-12 Speed - 30T PDP|Colour and this is one ofabsoluteBLACK 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