Wheel Hub that fits my Motormount for the AR eGyro of the ARx 540 Bike
This was designed for the first version of their eGyro, without the clutch assembly.
You need a 15x21x4mm Bearing to use it.
These are prototype parts, their use can be seen here:
http://www.rcgroups.com/forums/showthread.php?t=1898219
If you want to give them a try, feel free to contact me!