Motorcycle specific adapter required (sold separately) Sold as a pair Correct adapter required for use kuryakyn 4028 ISO Stirrups motorcycle footpeg heel rests rider comfort bargain The unbelievable comfort of Stirrup heel rests fits all Kuryakyn footpegs footrests is now available for metric cruisers. This adjustable height heel rest allows footboard-like support to reduce fatigue on longer rides. ISO stirrups for Metric Cruisers are compatible with ISO pegs and retro pegs. Motorcycle specific adapter required (sold separately) Sold as a pair Correct adapter required for use Must be used with Kuryakyn footpegs and footpeg adapters