BR 550 - Mid-range 4-MIX backpack blower

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

The ergonomic carrying system offers pleasant carrying comfort with height adjustment and corner adjustment. The hip belt also helps working, especially with longer periods of application. ;

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.

Patented special filler caps for fuel and oil. These filler caps can be opened and closed again, quickly and easily without tools.

Intense vibration at the handles of power tools can lead to longer-term effects of blood vessels in the hands and arms. STIHL have therefore developed an effective anti-vibration system where by the oscillations from the machines engine are dampened which significantly reduces vibrations at the handles.

This houses all the engine controls. Easy, comfortable thumb-operated control means the operator's hand never leaves the handle.