The Dynatrac ProRock 60 is equipped with the company's new DynaLoc locking hubs. The DynaLoc hubs offer a low-profile knob within a stainless steel bezel and use heat-treated chrome-moly steel gears that are made in the USA. The DynaLoc hubs also employ the Dynatrac Pro 60 Stub-Hub kit. The shorter length of the Stub-Hub is a big help when navigating narrow obstacles where a longer hub might hang up or interfere with forward motion. As a result, the DynaLoc hubs will sustain less damage in such trail situations.