JConcepts 3121-22 Reflex Pre-Mounted 1/8th Buggy Green Compound Tires on Yellow Wheels (2 Pack) Roadname_Union Pacific - UP They were renumbered after SP’s

They were renumbered after SP’s own units

Program decoders using DecoderPro®

These vehicles continue to be in service with the armed forces of several countries

Old-school spoke “wagon” wheels with oversize off-road tires

differential/ pinion gear

JConcepts 3121-22 Reflex Pre-Mounted 1/8th Buggy Green Compound Tires on Yellow Wheels (2 Pack) Roadname_Union Pacific - UP They were renumbered after SP’sJConcepts 3121 22 Reflex Pre Mounted 1 8th Buggy Green Compound Tires on Yellow Wheels 2 Pack This is a pack of two JConcepts Reflex 1 8th Buggy Tires. The Reflex tire is designed to bridge a gap between the popular Hybrid tire and other options such as Crossbow and Stacker tire. The Reflex has square angled pins that are stacked vertically to flex and fold evenly across the tire. Typically a stacked tread will wear less and provide more forward bite