DT Swiss Long Installation Cylinder Description: The DT Swiss Long Installation Cylinder is designed to safely install and seat new bearings over the axle and within DT Swiss and select Specialized/Roval hubs. Rugged, stiff construction ensures the pressure that is applied to the tool gets transferred directly to driving in the bearing, and exacting fitment ensures the bearing is installed properly without any damage. Features: Tool for properly installing/seating bearings within DT Swiss hub shells with the axle installed Rugged tool steel construction ensures great durability and reliable installation performance Dimensions ensure bearings get driven in straight over the axle and flush within the hub shell Primarily engineered for installing the cartridge bearing into the non-driveside of newer EXP system rear hubs as well as various front hubs