Originally Posted by
operator
None of the information you provided makes any sense.
16mm is uncommon for front wheel cones.
No such thing as inner and outer locknnuts. You just have locknuts. They usually take a 17mm.
Post a photo bro.
I'm assuming that this is a non-QR wheel, and that OP is distinguishing axle lock nuts (the "inner locknuts") from the actual wheel nuts (by this logic, the "outer lock nuts")