ATV Performance Modifications 2004 sportsman 500 ho ebs gearrrduction July 29, 2015 I have a 2004.5 sportsman 500 ho with ebs. Looking for gear reduction for it. Having a hard time finding info for one. Wanting to go to 30" tires on my bike is reason for it. Any advice would be great. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related