What is the best style holster for concealed carry on a motorcycle?

go to an army shop and ask for ssuggestions
as long as ur not a registered terrorist they will help u find somethin u like that is comfortable, hidden, and not cincidered concealed to the cops so u dont get arrested for having a concealed weapon
References :
dad used to be a cop

Get a webbing based underarm holster. Not that you'll have an accident, but that keeps the gun away from your spine and groin in a wreck, and keeps it in a spot where it can be easily accessed and unlikely to discharge.
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http://cheaperthandirt.com

Considering it is a Glock 30 an ankle holster is out. wearing a shoulder holster could hamper your driving. I'd say stash it in one of your bikes compartments. Only logical chose.
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I vote for the Inside the Waistband Paddle holster. It is usually positioned behind the hip,, so it does not show (or "print:).
But it can be quite painful if you take an unauthorized excursion, away from your wheels suddenly, If you are in a hurry try a premade cowhide holster, You need a stiff belt, to keep it from rolling out of your waistband, and dumping it in the street, though.

A Galco/Jackass Leather shoulder holster is fine for wear under a jacket if you can stand to wear a jacket 12 months of the year.
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I carry a S&W 40 Cal in a sholder rig-Or inside jacket pocket
If a place dont feel or look right its in my waistband but not to carry on the scooter
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short answer, you cant carry a glock 30 concealed while riding a sport bike.
its just too thick. a fanny pack is about it for a glock 30.
smiti has it right. get one of those mesh sleeveless t shirt type things with a high under arm pocket & carry something thin like a kel tec p3at or ruger lcp & wear a loose t shirt over it.
an inside the waistband or small of the back holster will stick up like a flag pole when your bent over on a sport bike & do some serious damage to your body if you get knocked off & roll a half a block or so.
best to forget about your primary & just carry your back up when riding.
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I'm a cop and I carry my snubnose .38 in my zippered up and velcro shut motorcycle jacket pocket. Yeah I know its just a 5 shot, but when I'm out and about I'm not looking into getting into a major gun battle! I considered waistband holsters, but I didn't feel they would be secure enough for my gun. I prefer my Glock .23, which is a compact version of the standard Glock. I have an IWB holster for that, but not when I am riding, I think it would be too uncomfortable. If I were you, I'd carry in a thumb break holster, velcroed inside of a tank bag. Its easy access, and secure! When you get off the bike you can sling the bag over your shoulder.
References :
self