Shimano's STEPS Speed sensor unit for disc rotor positionEW-SD300 3.45 mm diameter E-tube cable, length 1400 mmFor chainstay mountingPlugs directly into DU-EP800 drive unitShimano EW-SS301 speed sensor unit, for disc rotor£34.99PriceSize*SelectQuantity*Add to CartDeliveryThis item ships from our UK distributor. Standard delivery: 3-5 working days.