Quarq DFour AXS DUB Power Meter Spider - 110 BCD, 8-Bolt Crank Interface, Black Suspension Fork Accessories ISO Diameter: 254 / 14"

ISO Diameter: 254 / 14"

Manufacturer Part Number: DH-400-SAR

and locking nut (#737) from the Park Tool HTR-1 Head Tube Reaming and Facing Set

Compatible with Shimano GRX cranksets including RX600 and RX810

front or rear

Quarq DFour AXS DUB Power Meter Spider - 110 BCD, 8-Bolt Crank Interface, Black Suspension Fork Accessories ISO Diameter: 254 / 14"DZero DUB Spider Spider must be paired with a compatible Quarq DZero DUB crankset with an 8 bolt interface and SRAM DUB bottom bracket Not compatible with SRAM's 3 bolt direct mount interface DFour DUB is designed for Dura Ace R9100 chainrings Bluetooth low energy technology and ANT+ wireless data transfer MagicZero technology automatically checks and recalibrates your power meter as you ride no need to manually calibrate AxCad system provides no