I actually had a discussion about this topic with one of the guys at Beech Grove Firearms. A fellow they know lost a gun at 70mph on I65 because it wasn't being carried in a secure place. I believe he had it in the small of his back. I'd recommend a shoulder rig or a holster that fits inside an inner jacket pocket, depending on your jacket use. I hate having any kind of restriction around my hips when I'm riding so I'd try to keep the gun above the waist.