I do like a flurry of activity!
As Magnetoman's bearing spec' search found similar close comparison between the 2.25" & the 2" versions as my search turned up & having mulled it over some more, I am pretty sure I'm going to go for the 2" "cure".
I think the minor trade off on specs is as MM say's, probably irrelevant in all but the most extreme uses. As much as I knock around pretty quickly, I will not be doing 4 laps flat out at the Classic TT
, plus multiple practice laps, plus many short circuit races to qualify!
The engineer will have no problem making a correct adaptor sleeve for the housing & I have left the cases with him to check the housing for truth, until I confirm the go ahead for sleeving (& get a bearing). I would dearly love to be able to do this stuff myself & whilst I do occasionally machine simple odds n sods", my skills & machinery are not up to this task.
I am looking into using one of the now much discussed SKF sleeves, (other sleeves are available) for the loose rear wheel bearing housing of another bike. If the housing isn't true I will no-doubt have to completely dismantle the wheel to enable machining, which doesn't exactly fill me with glee... Fortunately I was given an old wheel building frame years ago, which makes life a little easier for that job.