SRAM Rival XPLR AXS E1 1x WIDE Powermeter Spindle Crankset Giant Jan Sale Disc standard : 6 Bolts 170000312 Disc standard : 6 Bolts or Center Lock® It's 15x stronger than steel and provides the highest tear and tensile strength of any competing fabric High precision power meter designed for gravel bikingDurable aluminium construction for both crank arm and axle ensures long lasting performanceUtilizes ANT+ and Bluetooth protocols for seamless connectivity with cycling computers and smartphonesOver 400 hours of operating time with a single AAA lithium battery for extensive ride trackingMeasurement accuracy of 1 Unleash your gravel riding potential with the SRAM Rival E1 XPLR Wide DUB Direct Mount 1x13 speed Powermeter crank arm set designed specifically for gravel enthusiasts