Check out this Chubby's handlebar web site, look at the pictures & read the comments from people who've installed them on their bikes; afterwards read the comments from thepeople on the H D Fourmwho've installed them. http://www.wild1inc.com/

 

the thing with the beach bars, if you try to grip them solidly (like a chin up bar) then you get a pain in your wrist, due to the weird angle. i find that if i grip the bars like a drum stick, (ie solid with thumb and forefinger, angled toward the palm on the end), then its not so bad. i still want to go with chubby 518s at some point, but would like to check them out first and no one around here has them.

and of course, ymmv.