Listed on the maintenance schedule as part of the 10K service is lubing the "rear wheel roller bearing (left hand side outer)". Has anyone done that, or is there a YouTube video or any other resource, other than a shop manual, readily available that shows how to do that?
He's referring to part 1 on the diagram you posted, page one of this thread.
In my opinion you don't need it, unless you damage it.
Triumph also expects you to replace any bolt with thread locker on it and things like oil drain bolt washers and fuel pump gaskets.
Just use your own judgement on a case by case basis.
Listed on the maintenance schedule as part of the 10K service is lubing the "rear wheel roller bearing (left hand side outer)". Has anyone done that, or is there a YouTube video or any other resource, other than a shop manual, readily available that shows how to do that?
pretty easy, get the right grease ( good quality), get the oil seal in case you break it, get the torque wrench, socket, center stand, wheel removal socket,