How far can you bore out a 250X?

[wilkin250r]

I know that you can bore out a 400EX to a 426 before you need to resleeve, which is an 88mm piston. This is 3mm over the stock bore of 85mm.

How far can you bore a 250X before needing to resleeve? Can I get the same 3mm over the stock bore?

[Derrick D]

I think you can only go to 76mm before you have to sleve it.