SRAM RED 1x XPLR Wide Crank Arm Assembly - 160mm 13-Speed 8-Bolt Direct Mount DUB Spindle Natural Carbon E1. When SRAM found ways to make their lightest and stiffest crank even lighter they went for it. A new process further grams from the hollow carbon arms. Plus they're offering more crankarm lengths than ever before to ensure this crank works for you.

Hollow carbon crank arms are 29g lighter than previous generation
8-bolt interface compatible with power and non-power AXS spiders and integrated chainrings (Spiders and Chainrings sold separately)
DUB bottom bracket adds durability and simplicity (Sold separately)
Includes DUB Wide Spacer kit (2.5/3.0/4.5/5.5 mm)
150mm Q-factor / 47.5mm chainline

Number of Chainrings No Rings No Spider IncludedDrivetrain Speeds 12Drivetrain Speeds 13Chainline/Hub Compatibility 135/142 Road Disc Hubs < 415 mm ChainstayChainline/Hub Compatibility 135/142 Road Disc Hubs > 415 mm ChainstayColor Natural CarbonCrank Length (mm) 160Crank Intended Use GravelBB Included NoPedal Spindle 9/16"Spindle Interface Type SRAM DUBDefined Color Carbon