The Shimano MS freehub driver body standard is a clear step-up from the traditional HG driver body when it comes to durability. For particular heavy-duty applications, an additional option exists that takes longevity into a whole new level.
Read further to learn more!
Interface
The HG freehub body interface works well in most use cases. However, the freewheel driver body can be subjected to wear and tear in particular situations. The usual culprits are cassettes that employ a design in which all the sprockets are individual units instead of being attached to a larger spider that shares the torque over a larger surface area.
Another classically challenging situation is the use of single-speed drivetrain, whether it’s used for true single-speed riding or gearbox use. In either scenario, the single cog can really dig into the HG driver body if the components are not properly dimensioned and manufactured.
The Micro Spline – MS for short – solves these matters by adding more splines to the interface, thus creating a stronger connection with added torque capability. The MS standard is a more advanced solution compared to the HG standard It’s safe to say that it’s up for the task in >90% of the cases.
Chromoly for Strength
However, for riders who tend to destroy almost any drivetrain, an even more durable option is now available: Shimano MS freehub driver body made out of high-grade chromoly!
Previously, the use of chromoly was reserved only for HG and Sram XDR driver bodies. The MS chromoly option is the equivalent of combining a belt and suspenders at once, so to speak.
To read more about freehub driver body material choice, refer to the article linked below.
Onyx Freehub Driver Material – The Choice Between Steel and Aluminum
Available Now
The MS chromoly freehub driver bodies are available now as individual spare parts. Head to the webshop platform to purchase yours. If you want to purchase a hub set equipped with the said freehub driver body, get in touch by email at info@onyxhubseurope.com