i ride 18 inch wide, but a big jump from stock is hard. i had 15 inch wide bars after i got sick of stock, and those were unbeliveably perfect. so try 15 inches wide
I would say that 16" is pretty good for all around. It's bigger than stock but not so big that it makes it really har to barspin. All in all, it's based on what you like.
20 wide, 22 high, and i went right from 12 inches to 20 inches, but yeah, try 14 or 15 to start, and see if you want it wider or to stick with you stocks
id sya bout 15 inches dont ride wide bars like everyone else if ur not that good because it makes it harder to learn tricks like if ur not to great at bars trying ti learn barspins with 18 wide is hard so id say try 15 or so