STIHL FS 91 R Professional BrushcutterFor working on large areas of tough grass. A simplified start up sequence for convenient starting, loop handle, control handle with stop button, 4 MIX engine with larger tank for longer use, rigid drive shaft, double shoulder harness. Technical data Technical data Value Sound power level dB(A) 1) 107 Sound pressure level with plastic tool dB(A) 1) 96 Displacement cm 28. 4 Weight kg 2) 5. 5 Total length cm 3) 1. 800 Power output kW 0. 95 Tank volume ml