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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. ST300 Freehub Body Specs FH Model ST300 and ST300 BST (Boost) Material Steel alloy, with stainless steel pawls Finish Black anodized Diameter 30mm Weight HG ≈ 96g, XD ≈ 90g, MS ≈ 104g Pawl Count 3×2 Pawl Height 8mm POE 21 Effective POE 21 Degrees of Engagement 17.1428571 degrees (lower is better) FH Bearing Size (outside/Inside) 6902LBLU/6902LBLU (HG + XD) Freehub HG Shimano HG/Sram “Splined” MTB 8/9/10/11 Speed + Shimano/SRAM Road 8/9/10 speed Freehub Road 11 N/A Freehub MicroSpline Shimano MTB 12 speed (12TA axles only) Freehub Sram XD Sram XD 1×11 + 1×12 Freehub Sram XDR N/A Notes TBA
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🇺🇸 Ship from USA · On Agora since 2026
$79.99