What chainring size options do you offer for SRAM RED eTap AXS™? SRAM USA April 10, 2019 14:08 Updated 50/37, 48/35 , 46/33 1x = 36, 38, 40, 42, 44, 46 (ring+spider) 1x Aero 8 bolt direct mount = 48, 50 Related articles Will additional chainring size options be added later? What cassette size ranges do you offer for RED eTap AXS™? Why are the 2x chainring tooth-count differences between the large chainring and small chainring lower on SRAM RED eTap AXS™ compared to SRAM’s previous road chainring gearing options? Is there a 2x version of the RED eTap AXS™ crankset that uses a 4-bolt spider? Is the Q-Factor for SRAM’s eTap AXS™ road cranks different from SRAM’s 11-speed road cranks? Comments 0 comments Article is closed for comments.