Can I machine out the Shock Mount Holes on the FXR Swingarm?

Yes, it is safe to machine the shock mount holes to 1/2" to match the factory bolt size. The swingarm is designed with enough material in that area to accommodate this modification without compromising structural integrity.

Just ensure the machining is done accurately and cleanly to maintain proper alignment and fitment. If you're unsure, we recommend having the work performed by a qualified machine shop.