Halo Trick N Track Hub

A few companys are working on a splined hub to substitute the historic threaded cog/lockring setup. This one caught my eye. The Halo Fix-G Track Hub has a splined hub body (with cogs that slide on) and an independent lockring, that never has to handle rotational forces from the drive.

Halo:'The Halo Fix-G hub features a fixed HG spline machined as part of the alloy main hub body*, with a conventional internal thread for a standard HG type lockring (with easy tool fittings) + options L/H side for conventional fixed or freewheel threads.
*Note: Must ONLY ever be used with “7mm base Wide Foot” cogs… such as Gusset Double Six cogs to avoid the cog biting into the alloy splines on the hub. Regular width HG cogs should NEVER be used.'

More info here.