Shimano FC R8000 left hand crank arm unit, 175 mm

175mm / FC-R8000 drivetrain layout supports efficient power transfer, stable pedalling and dependable chain engagement Rigid arm construction helps maintain alignment under load, giving riders a direct feel during climbs and accelerations Biela Iz. 175mm compatibility makes replacement planning easier for workshop builds, upgrades or routine drivetrain servicing Tooth configuration is tuned for smooth cadence changes, helping keep momentum across mixed terrain and varied riding speeds Durable finishing helps resist everyday wear, keeping the component suitable for regular road, gravel or MTB use