GKA Sand Mud Snow Wheels expander wheels for ATV.

GKA Sand Mud Snow Wheels — Wheel Extenders for ATV and UTV

GKA SMS wheels are wheel extenders: discs that bolt onto the existing wheels and widen the contact patch dramatically. The development followed the North American J-wheelz concept, adapted to the machines and terrain we actually sell into.

The principle is simple physics. The same machine weight spread across a much larger footprint means far less pressure on the surface, and a surface that would swallow a normal tyre carries the machine instead. Fields, marsh, deep snow and soft sand all become passable.

Fitting takes no more than a minute per wheel, and all fasteners are in the set. They go on any brand of ATV — this is a universal fitting, not a model-specific part.

The extender measures 550 mm across with a 390 mm inner diameter, and weighs 5 kg. The price is for one wheel.

SKU: SMS-1

Key Features

• Massive footprint increase: the machine floats where it used to sink.
• One minute per wheel: fitted at the edge of the bad ground, not in the garage.
• Fits any ATV brand: universal, with all fasteners supplied.
• Removable: off again for the ride home on hard ground.
• 5 kg each: two or four can travel on the machine.
• Sold individually: buy two for the drive axle, or four for everything.

Use Cases

Deep snow, where a standard ATV tyre digs down to nothing and the machine sits on its belly pan. This is the case the extenders were built for.

Marsh and peat, where the ground carries weight only if the weight is spread. A machine that would break through on tyres will cross on extenders.

Soft sand and ploughed fields, where traction is not the problem — flotation is.

Because they fit in a minute and come off just as fast, most owners carry them and fit them only for the section that needs them.

Compatibility

Universal — fits ATVs and UTVs of any brand, along with other off-road wheeled machinery. All fasteners are included in the set.

If you are running these on soft ground, sand tracks are the natural companion for the moments when even a wide footprint is not enough.

Technical Specifications

Complete Set

• SMS wheel extender — 1 pc
• Complete set of fasteners