Mine are 11" but if you want shorter ones. The shop that sales them have 9" risers too. Just another option for you to look at

 

Where did you get your setup from, It looks like it would be a pain to wire, but I havent seen a soul with that setup down south.

 

My t bars are just straight with built in riser (from west coast t bars). They're 12'' risers (I'm 6'3''), but you could probably go with 8 or 10 inch and be safe. i used stock cables, but my bob came with apes, so I don't know how much play you have in there.

 

Thanks for the help guys. Probably gonna go with 8'' drag bars from wild 1s or there 8-10 choppert bar. I definitly like the look of the the straight built risers better but am unsure as to whether at 5'7 they will have enough pullback to be comfortable. ill just have to mock some up i suppose.