Is this not the same as running through the center of the axle? The chain adjuster bolt is connected to a block that encircles the axle inside the swingarm. It is true, if the trailer was to suddenly pull, like it getting hooked up on something while riding, it would try to pull the axle backwards. If something didn't break, it could cock the wheel inside the swingarm because the chain would stop one side from pulling back. I have not had this happen. I imagine the alum plate I made would crack in half before damaging the chain adjuster.