and 40mm rise

They are also coated with a hard multi coating to reduce scratches

11-46 GS/SGS Derailleur

or at events

Not suited for Trail riding

absoluteBLACK Direct Mount Narrow Wide Chainring - SRAM Direct Mount - 3mm Boost - Oval - Titanium - 9-12 Speed - 34T Dangerous Goods and 40mm riseabsoluteBLACK 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