We are located by Moline, Il. (west-central Il) You can control the RPM in the cab if you have the Single HYD spreader option which also has the control as part of its kit. That kit will run you around $1900 without freight for that option new.
We are 35 minutes south of Moline just 4 miles East of I-74 on Rt. 34 at the edge of Wataga. Getting rid of it because not many guys are wanting that much of a spreader around here. It's used and come off a '98 R72. Sorry about getting back to you so late.