If you don't buy the axle and want a little wider stance, just use 400EX/450R hubs. They fit the 200X's splines and move the wheels out 1" on each side. Genuine Honda parts, +2" overall, the ability to widen it more with wheel offset, and all without the trouble of swapping the axle. This is the plan for my 200Xs. Of course, if you don't buy it, pass the info on for our trike brethren.
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