This Kyosho factory replacement rod ends set is made for the Ultima RB7 buggy and features a hard compound construction for increased durability and reduced flex under load. The 4.8mm sizing is designed to mate with standard 4.8mm linkage rods used throughout the vehicle's steering and suspension system. Hard-compound rod ends are a popular upgrade or replacement choice for racers seeking more precise handling response compared to standard soft versions. Features: 4.8mm rod end sizing Hard compound construction for reduced flex Factory Kyosho replacement set For Ultima RB7 steering and suspension linkages 7/7/26 cs