I carried in the tank bag and side pocket of my riding gear.
I would not recomand carrying IWB, shoulder or perhaps appendix. In case of an accident you'd have the gun directly on your body and the impact would cause more damage then without, just like falling on a rock.
OWB with a stable and rigid holster should work fine and issaver in my opinion.
I personally carried my trustworthy H&K P30 in a condom to keep it dry but still functional without removing rupper. I was riding long distance in all weather conditions though.
Ride safety goes first and think about your rip cage going down with a shoulder holster.
A motorcycle riding police officer may be able to give more and better advise to this topic.
Ride safe you all and keep the rubber down.
