We suggest only trying shoes on carpet so no marks will be applied to the shoes. This item number is 1.
CRANK BOLTS SQUARE TAPER M8 UNIVERSAL SHIMANO BOTTOM BRACKET AXLE ALLEN KEY
BIKE CRANK BOLTS SQUARE TAPER M8 UNIVERSAL FIT SHIMANO BOTTOM BRACKET AXLE 18MM
Crank Bolts Square Taper M8 Universal Fit Shimano Bottom Bracket Axle Allen Key
Shimano Ultegra Di2 RD-R8150 Bracket Axle Unit - Normal Type - Y3J198020
