As title . Engineering co in next unit might be able to either fit a removable grease port, or retro fit the proper bearings , with decent seals and internals . They do some work for Redbull Racing and seem quite switched on.
X types , especially RF or Shimano as they seem most common. Just maybe they can come up with a solution that is cost effective and means they last for more than 5 minutes.
RWD323 at HOTMAIL dot COM