Webb Supreme R21HW High wheel self-propelled lawn mower with a steel cutter deck, Briggs & Stratton engine, 4 cutting settings and 21” cutting width.

The Supreme range is the next step up from the Webb Classic collection with Briggs & Stratton petrol engines, deck wash ports and hard top grass collectors.

The Supreme R21HW has 4 mowing options for the user, cut and collect, rear discharge, side discharge or mulch. If the grass box is removed the grass cuttings are deposited behind the mower where they can be left to wilt back. With the mulch plug in place the cuttings are re-cut into tiny pieces which are blown back onto the lawn where they virtually disappear. Using the side discharge option in long grass areas means the cuttings are deposited in a line to the side of the mower.

Fitted with a reliable Briggs & Stratton 675 Readystart petrol engine the machine has a power capacity of 190cc. The steel cutting deck on the Webb R21HW makes the mower hardwearing, suitable for most types of lawn and garden up to 50m x 50m in size.

The self propelled Supreme R21HW has 7 cutting height settings adjusted with a single lever.

Features include the 70 litre grass collector, soft grip folding handles and high rear wheels. The larger rear wheels provide easier handling and more traction in longer grass areas.


  • Model: Supreme R21HW
  • Type: 4 wheel, 4 in 1 
  • Blade: Rotary
  • Drive: Yes, single speed
  • Engine: Briggs and Stratton 675 Readystart
  • Fuel: Petrol
  • Engine Oil: 4 stroke (0.6l bottle included)
  • Cutting Width: 21" 
  • Cutting Heights: 7
  • Cutting Height Adjustment: Single lever
  • Wheels: Ball bearings
  • High Rear Wheels: Yes
  • Grass Collector : Fabric with hard top and carry handle
  • Grass Collector Volume: 70 litre
  • Rear Discharge: Yes
  • Mulching: Yes
  • Side Discharge: Yes
  • Deck Material: Steel
  • Handles: Soft grip, folding
  • Wash Port: Yes
  • Weight: 38.5kg
  • Overall Width: 56cm
  • Warranty: Manufacturer's 2 year domestic

Cutting Width
21 Inch / 53cm
Recoil / Pull
Engine Make
Briggs & Stratton
Mowing Functions
4 in 1
Deck Material

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Webb Supreme R21HW 4in1 Self-propelled Petrol Lawn mower

  • Brand: WEBB
  • Product Code: WER21HW
  • Availability: In Stock
  • Our Price: £400.00

  • RRP: £419.99
  • You save: £19.99

Tags: 4 wheel lawn mowers, rotary lawn mowers, Webb mowers, self-propelled lawn mowers, petrol mowers