The Stihl RT 4112 S is a compact ride-on mower capable on even the toughest of conditions. Offering a wide 110cm cutting width with a powerful 12 horsepower engine, this lawnmower is nimble to move around shrubbery, trees and obstacles. Having a low down, sporty, yet comfortable seating position means steering this Stihl mower is effortless.
- Powerful but compact ride on mower,
- Simple operation,
- Large 110-centimetre mowing deck,
- Side discharge system with mulching insert optional,
- Ideal for lawns up to 8,000 m²,
- 5-year manufacturers warranty (domestic use).
An impressive compact ride on mower designed by Stihl
This Stihl RT 4112 S is the cheapest 110 cm cutting width ride-on lawnmower of the RT Range. If you are looking to deliver expert results, it gets no easier than this mower, even for a beginner. Each one of the controls is within short reach from the driver’s position. Activating the blade clutch, cutting height adjuster and forward/reverse switch is close to the steering controls.
The drive pedals are similar to that of an automatic car. You’ll find the accelerating pedal to the right, with the brake pedal to the left in the footwell with plenty of legroom. To select forward or reverse, just slide the drive switch lever to quickly change direction. Ideal for turning around fast and keep on mowing.
Controlling the speed of the RT4112 S ride-on mower is a hydrostatic gearbox. This allows the rider to float the pedal at the desired speed, also allowing smooth control of the garden tractor.
At 206 kilograms this Stihl ride-on lawnmower is surprisingly agile to manoeuvre around. The steering wheel control to large turf tyres which allows plenty of traction for an uphill job. However, damaging your lawn is avoidable, the rounded shoulders of the tyres reduce drag and limits driving tracks from destroying your perfectly cut lawn.
What’s more, the sprung loaded seat is extremely comfortable absorbing whilst absorbing vibration and bump. Fortunately, the seating position can also be adjusted completely tool-free, to ensure your own optimal driving position.
Looking out from seating position, you will find a clear 360 view of the lawn ahead or the trailer attache behind you, using the integrated hitch system to tow your tools with you.
Don’t miss a blade of grass with the grass catchment system
Making full use of the Stihl RT4112S large cutting width requires an efficient grass-feeding system. As you mow steadily over rough or even ground, the guides of the mowing deck will push the grass towards the revolving blades. This forces the blades of grass to be cut to a neater finish and making full use of the mowing deck area.
If you are an admirer of stripey lawns, achieving these beautiful lines is child’s play using the central cutting adjustment. With 8 height steps to choose from, you can mow your grass as low as 35mm to a higher height of 90mm. Selecting the height is simple, the lever is directly next to your seat for hassle-free operation.
To activate the mowing deck is incredibly uncomplicated, just press the button on the control panel. The electromagnetic blade clutch will disengage and engage on demand.
Large areas are highly manageable because your grass cuttings are dispersing through the side vents. All of your grass clippings are thrown through the side discharge system onto the lawn. Ideal for users who recycle them or use the optional mulching insert to increase fertiliser efficiency.
Features We Like
The large turf tyres of the STIHL ride-on mower help to protect the lawn. Thanks to their rounded tyre design, they reduce the formation of driving tracks.
The integral trailer hitch enables easy mounting of attachments such as the convenient PICK UP 300 tilting trailer, which can also be used as a wheel barrow.
Central cutting height adjustment
The lever to adjust the deck cutting height is located directly next to the driver’s seat. It enables individual adjustment of the cutting height in up to eight steps.
Mowing deck with side discharge
Mowing with side discharge allows large lawns to be mown in a short time. This is due to the clippings being ejected directly onto the lawn and not having to empty a grass catcher box.
The robust frame construction gives the mower a high level of stability and driving comfort. The STIHL ride-on mowers compact design is great for using attachments such as the AGW 098 garden roller or PICK 300 tilting trailer.
Spring-loaded and adjustable seat
The most comfortable seat position can be set without the use of tools. This allows individual adjustment of the driver’s seat to almost any body size.
The low step on the STIHL ride-on mowers provides ample legroom and allows for comfortable access to the seat.
Catching management system
The catching system guides the grass blades across the entire working width of the mowing deck. It helps to guide the grass towards the mowing blades for a more efficient cut.
Single pedal drive
With the STIHL single pedal drive, the direction of travel can be conveniently switched between forward and reverse gear using a hand lever for quick manoeuvring. The pressure-sensitive pedal allows for precise control of the speed between top speed and standstill. The separate brake pedal ensures immediate stopping.
Electromagnetic blade clutch (EBC)
The mowing deck can be easily engaged and disengaged by a switch situated on the control panel.
With the mulch insert, the STIHL ride-on mowers can be converted into mulching mowers. The grass catcher box is simply removed and the mulch insert pushed into the grass catcher chute. This allows the grass to be shredded into fine particles inside the closed housing before they fall back into the turf, returning vital nutrients and moisture to the soil. Through this natural form of fertilising, there is no need to dispose of the grass.
|Lawns m²||up to 8.000|
|Cutting width cm||110|
|Cutting height mm||35-90|
|Tank capacity l||9|
|Engine type||B& S 4.175 Series Intek OHV|
|Nominal output||9.4 kW / 12.8 PS|
|working speed rpm||2.800|
|Machine Length cm||191|
|Machine Width cm||132|
|Machine Height cm||116|
|Guaranteed sound power level LWAd [dB(A)] dB(A)||100|
|Sound pressure level dB(A)||86|
|Uncertainty factor, sound pressure level KpA dB(A)||1|
|Vibration value ahw m/s²||2.9|
|Uncertainty factor K Wheel m/s²||1.45|
|Vibration value ahw Seat m/s²||0.6|
|Uncertainty factor K Seat m/s²||0.3|