addjunkie
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It's a type B axle from what I have seen with my bigger tyres it should be fairly close and the breather had been re drilled
From your pictures there looks to be a diff casing stamped A.
An A is 2.78 to 1 ratio a B 3.23 so quite a difference even if your using tyres the same rolling radius to the bike, you need to alter tyre diameter to balance out ratio differences between bike and axle.