Forged alloy body Chromoly spindle Shimano SPD compatible Flat side with rubber insert for traction Toe clip compatible on non-SPD side 420g pair 9/16` Loose Ball Silver SPD
Alloy body and cage Chromoly spindle Shimano SPD compatible Toe clip compatible on non-SPD side 383g pair SHIMANO Equivalent PD-M324 9/16` Loose Ball Black/Silver SPD
Aluminum body and cage Chromoly spindle Shimano SPD compatible Toe clip compatible on non-SPD side (included) 760g pair 9/16` OS Loose Ball Black/Silver SPD