well you can buy variator holders,but apart from that its hard to do i have seen people wedge a screwdriver between the case and the outer adge of the variator but its not a good idea as it can damage it if you are not very careful i always use an impact gun but if you havenet got one or cant get access to one then its one of the other two options unless you book it into a repair workshop cant youn get a local car tyre company to undo it for you they always use impact guns (too much).be careful when you doit up as these powerful guns can easily strip a 10 mm thread off a crankshaft and use loctite on the thread when you put the nut back on or it will come loose and cause hassle for you.
adam bike doctor
February 2010