the SM-CRM70 chainring features Dynamic Chain Engagement for smoother pedaling and better chain retention for when the trails get wild

and it pumps high volumes of air

and cut marks in 10mm increments down until 750mm

This will save you a few bucks over buying a completely new air spring

Updated troubleshooting tables

absoluteBLACK Direct Mount Narrow Wide Chainring - Race Face - Easton Cinch Direct Mount - 3mm Boost - Oval - Black - 12 Speed Shimano - 34T Replace Images the SM-CRM70 chainring features DynamicabsoluteBLACK 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