Can I machine out the Shock Mount Holes on the FXR Swingarm? Original Question: The shock mount holes on the FXR aluminum swingarm are significantly smaller 3/8 vs the factory bolt hole of 1/2″. Is it ok to machine out the shock mount holes to 1/2″? Yes, machining them out to 1/2″ will be fine. Share : Related Knowledge Base Posts -The shock mount holes on the fxr aluminum swingarm are significantly smaller 3/8 vs the factory bolt hole of 1/2″. Is it ok to machine out the shock mount holes to 1/2″?I want to use Hayabusa forks on a 2010 Night Rod. Will your triple trees work?Can you Install Shocks on for a Harley-Davidson TriGlide Ultra Classic
