SRAM Force 1x XPLR Wide Crankset - 170mm 12/13-Speed 42t 8-Bolt Direct Mount DUB Spindle Carbon E1SRAM Force 1x XPLR Wide Crankset 170mm 12 13 Speed 42t 8 Bolt Direct Mount DUB Spindle Carbon E1. The Force XPLR 13 Speed crankset features refined elegant carbon crankarms with an updated light and stiff direct mount 1x chainring. This crank can do it all and looks great doing it. Single ring drivetrain simplifies functionality and reduces weight X Sync wide tooth narrow tooth aluminum chainring technology provides maximum chain control Carbon fiber