Can't see anything in FYO, but in ATY, page 23 there is a sales pitch from the producer of the kit, but really tells very little about the fitting, or obviously and independent appraisal.
Thanks.
Tony
I fitted a set three or four years ago to my D shadow, and to a mates egli.
The fitting is very simple. Don´t forget to check that the nose of the bearing inner doesn´t catch on the lip of the headstock inner bearing seat. Should this be the case, a dremel and 10 minutes to taper the lip down is all you need. (top & bottom)
Initial bearing adjustment can be a bit tricky depending on how indented the steering stem is from the top clip pinch bolt (on tightening, the whole assembly wants to adjust itself back to where its been for the last 50 years)(please don´t ask me for part numbers, it´s been a while since i looked in the catalogue).
Wear is non existent,and were it not for the yearly greasing ritual, i wouldn´t have to touch it.
As i mentioned, very simple to fit,very friendly in maintenance, but a bit on the pricy side (Christian has to disasemble the bearings, and get the cages ground down to fit our head lugs, then reassemble)
If i´d had access to a decent lathe, i´d probably of machined the bearing seats out to take standard timkins.
Hope this helps tony.