July 2011 I emailed RGM about their strengthened g/box shell due to mine having a loose sleeve gear bearing and got the following replies:
Dear Graeme
The heavy duty gear box shell are beefed up around the bearings these are a compromise between the standard shell and the quaife one. If you take a look on our web site there may be a picture of it on there. At a guess the post and packing would be about £40 to £45
Thanks Lawrence
Hello Graeme,
Re the bearings spinning, quite common for the sleeve gear bearing to spin, layshaft normally OK, not quite sure why loctite is classed as a failure, properly degreased with the right grade correctly applied it should work. Assuming everything is in good order its difficult to see what would fail or how the bearings would cause a failure, the heavy shell is simply a much beefed up casing, but not between the two bearings where you would want to beef it up, so in reality not really recommended, it would make no difference in the area you are having problems with. In truth on a road bike the shell is not really the issue its always something else that fails that causes the shell to crack, a broken tooth jammed between two gears, or bearing failure particularly on the layshaft damaging the main shell. If I found no cracks or other damage on the shell then I would use loctite and use it. If you wanted to change it I would go for the standard shell.Hope this helps, good to see the old post office is still working away. Best regards, Roger
I ended up buying an Andover one.
