Stihl FS 91 Brushcutter

Stihl FS 91 Brushcutter

Stihl FS 91 Brushcutter

£449.34 excl. VAT

£539.21 incl. VAT

For working on large areas of tough grass. Simplified starting, bike handle, control handle with stop button, 4-MIX® engine with larger tank for increased cutting time between filling, rigid drive shaft, Supplied with ADVANCE Universal double shoulder harness, metal grass blade and AutoCut mowing head.


Collection from store only

Full Details

Standard features

Double shoulder harness

Soft padding makes work more comfortable during longer jobs.

STIHL 4-MIX engine

You can always rely on STIHL to keep setting new benchmarks this time with 4-stroke mixed lubrication technology. The STIHL 4-MIX engine, which runs on a fuel-oil mix just like a 2-stroke, offers the benefits without the compromises of 4-stroke power. STIHL 4-MIX engine technology provides fast acceleration, more power, added torque, lower noise, reduced emissions and increased fuel efficiency to complete jobs quickly, quietly and more easily.

Anti-vibration system

Intense vibration at the handles of power tools can lead to long-term effects on blood vessels in the hands and arms. STIHL has therefore developed an effective anti-vibration system whereby the oscillations from the machine’s engine are dampened which significantly reduces vibrations at the handles.

Multi-function control handle

Easy, comfortable thumb-operated control means the operator’s hand never leaves the handle.

Decompression system

The decompression valve allows some of the compression pressure in the cylinder to escape, so less force on the starter rope is needed.

Bike handle

When used in conjunction with a harness, the bike handle enables a smooth mowing action. The bike handle allows the machine to be easily guided, making it ideal for working on large areas and thus reducing fatigue.

Technical data

Vibration levels left/right with metal blade m/s² 1)3.2/2.5
Displacement cm³28.4
Power output kW/bhp0.95/1.3
Weight kg 2)5.8
Cutting bladeAutoCut C 25-2 & GSB 230-2
Fuel capacity l0.71
Vibration levels left/right m/s² 1)3.4/3.0
Overall length m 3)1.8
Sound pressure level dB(A) 4)95.0
Sound power level dB(A) 4)106.0


1) (K) factor according to Dir. 2006/42/EC = 2m/s²
2) without cutting tool and deflector
3) without tool
4) Power factor according to DIR2006/42/EC=2.5(dB(A))