Assuming that's the factory bevel, the asymmetry is very common (on almost all knives, not just that one). The primary grind on most blades will be somewhat asymmetrical, though most of the time it's not a problem. The asymmetrical grind itself leaves the steel a little thicker on one side (relative to the centerline of the blade, drawn from the center of the spine down to the apex of the cutting edge). When the steel is thicker on one side like this, a wider bevel will always result on the thicker side, when sharpening each side to the same angle.
A similar effect (wider bevel) can be produced on a more symmetrically-ground blade, if the sharpening angle on one side is more acute (lower angle) than on the other side. The more acute side will have a wider bevel.
If you're sure the sharpening angle on each side is the same (or fairly close), and you can verify you're contacting the edge when sharpening on both sides, I wouldn't worry too much (or at all) about the bevel being a litte wider on one side. Under that circumstance, it's mainly a cosmetic issue and won't affect functionality at all.
If, on the other hand, you're noticing that the edge isn't making contact with the hone on one side (but the shoulder of the bevel is), it may be that the edge angles are different on each side, which will only create frustrating sharpening difficulties until it's evened out by re-bevelling, a.k.a. re-profiling the edge to better symmetry.
David
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