I dunno if this is a repost but I've never seen it. I just stumbled upon it, talks about upgrading front brakes on the GS.
http://www.motorcycle.com/how-to/suzuki-gs500-front-brake-upgrade-3438.html (http://www.motorcycle.com/how-to/suzuki-gs500-front-brake-upgrade-3438.html)
-Ash
Nothing new that has not already been stated before here.