WOW, what a bunch of HOOEY! So many opinions of ABS when people have never ridden an ABS bike and do not understand how it works. Probably half of the posts incorrectly describe ABS and how it works.
I have an ABS BKing and it flat out works very, very well. People talkng about sliding on turns, sand, wet leaves etc are way off. The bike will not slide as the computer kicks in and allows you to maintain control of the bike by not locking the tires. Remember you only slide if your locking the tires or if in a turning slide, which means you are going so fast that the bike is sliding to the outside of the turn. You would not be braking then anyway as your racing!
The ABS does NOTHING, 99% of the time. It only works AFTER you have locked up a tire. On the King, the Suzuki system works both front and back and is a fantastic tool. You stop 99% of the time without any ABS working!
So, you can modulate your braking and do whatever you want, as long as you don't lock up a tire. It works all the time whenever their is a speed difference between the front and rear tire while braking. It is so fast that you can't lock both tires at the same time to defeat the system(hundreths of a second). It then will release the braking until the tire stops sliding and reapply the brake, it does this faster than you can as a person.
If you let up on the brake a little bit so your not locking up a tire, the system immediately stops working. So, 99% of the time it never is used. It only comes into play in sand, oil, ice, leaves, or panic stops situations. On dry pavement with an expert rider, they can modulate the stopping better than someone just grabbing a handful of brake. They should instead have the expert rider, NOT grab a handful of brake, and instead have him modulate the brake and they would find he would stop pretty darn quick with no ABS use, on an ABS equipped bike. That would be a real test of ABS vs. Non-ABS. They don't do that test as they want to show it operating in a panic stop situation, grabbing too much brake.
Anyway, If it is offered on a bike, get it! You lose no braking control. EXCEPT, for doing burnouts. If the front tire moves at all the ABS sees it as a locked front tire and starts pulsing the front tire, when you really want it locked for a first class burn out! Oh well, we did find a negative, no burnouts! But a small price to pay for a very good safety tool.
Also, it doesn't weigh much and they are getting much lighter and even better for 2010 models. So, if you can get it, go for it!
I hope this explanation helps......