[Closed] What size cone spanner(s) do I need to service a 6-Bolt XT hub?

15 & 17mm if i remember correctly.

[url= http://www.chainreactioncycles.com/Models.aspx?ModelID=10200 ]X-Tools Spanners @ £3 each[/url]

15mm and 17mm (Park SCW-15 and SCW-17). Helps to have a pair of each (plus an extra hand 🙂 ) when tightening up.

Thanks guys!

I also did a bit of ferreting myself and found this:

http://www.bikemagic.com/news/article/mps/uan/3318

some old imperial ones and a file for mine.

10000 times easier if you can put the axel in a vice, either that of mil grips on one end and hold them between your knees.

I needed an 18mm for the rear - it's a couple of years old though - M756 i think. Only need it for one side though as you can brace the lock nut with something else and you only have to undo one side to slide axle out.

I noticed my cones were loose today when changing a tyre - I have finger tightened them which is totally wrong, but will they be safe to ride on for a fast 2hr blast?

Yeah, I've ridden long distances like that - they're not going to go anywhere if the QR's done up properly! Obviously you'll notice a bit of slop at the rim. It does seem a couple of years back that the nuts weren't tight enough from new, and often came loose on new hubs as a result.