Pert near nailed it. MS with it's trapezoidal rather than square splines supporting near every cog on the cassette is an improvement on the HG interface. That alone makes it cost effective when producing cassettes at all pricepoints while getting rid of the only real downside to HG freehubs: the galling the inevitably occurs when the loose cogs cut into the freehub body on alloy freehub bodies.
July 6, 2020, 8:06 a.m. - JT
Pert near nailed it. MS with it's trapezoidal rather than square splines supporting near every cog on the cassette is an improvement on the HG interface. That alone makes it cost effective when producing cassettes at all pricepoints while getting rid of the only real downside to HG freehubs: the galling the inevitably occurs when the loose cogs cut into the freehub body on alloy freehub bodies.