MAHLE

Shimano HG Aluminum Freewheel - Gen 2

MAHLE Shimano HG Aluminum Freewheel - Gen 2 is a direct-fit replacement driver body designed to restore smooth, reliable cassette engagement on compatible MAHLE Gen 2 rear hubs. Built around the widely used Shimano HG spline standard, it’s the right service part when converting back to HG compatibility or replacing a worn, damaged, or contaminated freehub/freewheel mechanism without replacing the entire hub.

• Shimano HG spline interface - Fits cassettes that use the common HG-style splines for straightforward drivetrain compatibility
• Gen 2-specific fit - Correct replacement part for MAHLE Gen 2 hub systems, helping avoid mismatch issues during service
• Aluminum body - Keeps rotating weight in check while providing a durable platform for the cassette and lockring
• Service-first replacement - Refreshes the cassette driver assembly to address wear-related play, roughness, or inconsistent engagement without a full wheel rebuild