SRAM RED X-Sync Chainring - 40t 12/13-Speed 8-Bolt Direct Mount 6.5mm Offset BLK/Silver E1 CheckoutTitle=SRAM eTap AXS Wireless Blips - Black 65mm model has suggested rim

65mm model has suggested rim depth of 20-25mm

we recommend a chainguide or chainkeeper in addition to a clutch-type rear derailleur

tubeless-ready

Summary in plot form - movement towards the red X is in the direction of goodness (more chain wrap and less free chain)

TURNAMIC® Speedmax Sole

SRAM RED X-Sync Chainring - 40t 12/13-Speed 8-Bolt Direct Mount 6.5mm Offset BLK/Silver E1 CheckoutTitle=SRAM eTap AXS Wireless Blips - Black 65mm model has suggested rimSingle ring drivetrain simplifies functionality and reduces weight X SYNC wide tooth, narrow tooth chainring technology provides maximum chain control SRAM Model ID: CR XSNC DM E1 TECH SPECS Chainring Comp. SRAM FlatTop Narrow Wide Design Yes BCD Direct Mount SRAM 8 Bolt Speed 12 Teeth 40