Replacement freehub body options for the Speed Tuned ST300 hub. Replacement freehub bodies come with new bearings installed. *Rear hub shell logo states “Speed Tuned ST300″ or “Speed Tuned ST300 BST” Tools required to replace the Freehub: (1) 5mm Hex/Allen Wrench & (1) 12mm Hex/Allen Wrench Steps: 1) Pull Non-Drive Side (NDS) end caps off (friction) 2) Insert 12mm hex wrench on NDS 3) Insert 5mm hex wrench on Drive Side (DS) 4) Loosen (opposite loosen to the right) 5) Pull off freehub 6) Inspect and clean area (as needed for dirt, dust, etc.), and replace axle spacer The Shimano MicroSpline freehub is only compatible with 12TA axles (Boost and 12x142TA). It is Not compatible with QR end caps.
