One thing to keep in mind. What happens if you crash? Many of the standard places for CCW would be bad in a crash. Don't want anything like that in the small of my back or near my ribs if I go down. Ouch.

Also, finding a place that is easy to access is hard. Picture this. You are all geared up, jacket zipped up, gloves on and you need the gun quick! First you have to take the gloves off (throw gloves at bad guy?), then you have to unzip the jacket, *then* you can try to whip it out....all while sitting on the bike, either in motion or parked?

If you keep it in the tank bag, you can never ever leave that tankbag alone. Can never keep it on the bike while you go into the store for a quick break, can never leave it on the table anywhere it might get stolen. You might as well be a secret service messenger man handcuffed to his breifcase. Or you have to somehow transfer it from the tankbag to a holster with no one noticing.

I think 99.99% of the time, just twisting the throttle is a better solution. But there is always the 00.01% No easy answers.