The Shock Shaft M3x45mm is a precision engineering component designed for the UTB18 model. This item comes in a set of two, ensuring you have a spare or the ability to replace worn or damaged shafts. Built to meet the specifications required for optimal performance, these shock shafts are an essential part for maintaining the functionality and longevity of your UTB18 vehicle. The M3x45mm size indicates the diameter and length, contributing to the compatibility and efficiency of your suspension system.