ive found out about changeing handlebars on streetbobs u can buy all sorts of risers 2 fit straight on existing top tree on streetbob, they even make a top tree for this model the adaptors they make will allow u 2 hav flat bars if u so desire, cables will hav 2 be changed there is numerous items this company makes all for streetbob handelbar changes, an they just bolt on 2 your existing top tree  just clik on this site ive put here in this note                                 www.lonerindustries.com an parts arent expensive hope this helps somebody Shingles

I bought a 2007 street bob tree off eBay but then went to black fat bob trees and powdered my lowers.
That integrated riser set up is the worst decision the moco has made.

try this
http://lonerindustries.com/1-inch-street-bob-risers.html

shingls you can put 07 type on but i went wide glide trees J.D.

 Joker machine have replacement top trees for around $200 from memory.

 Fat bob trees are as wide as wide glide trees ,, that's what I have on my SB I can post a pik if you'd want .. After I bought my fatty trees they came out lack ,,, JD

I bought fat bob trees $750 new from HH Melb got heritage risers 1" high, made up some spacers fought a wide golden ale and a booster with a glide ,,, all bolt on ,, the FB trees are -1* while FB are+3* it shortened my trail to much to be nice so went r -1 gave a bit more trail but handles nice ,, hope this helped ,, and twin disks too ,,, J.D.