The Shimano reflectors SM-PD22 are a retrofit for Shimano MTB clipless pedals like XTR PD-M970, XTR PD-M9100 with shorter axles, XT PD-M770, PD-M540, PD-M520 and some more. Two pedal plates are supplied to which the reflectors are attached. So you can quickly get your pedals ready for traffic.