AS 21 4T Comfort Allmäher – Long Grass Mower

AS 21 4T Comfort is a lightweight, practical Allmäher designed for clearing long grass on level ground and gentle slopes. Its Briggs & Stratton 4-stroke engine provides enough torque to keep moving through growth up to 60 cm, while the 3-wheel layout makes it easy to guide around trees, posts and uneven patches without feeling heavy or awkward.

This model suits users who want a simple petrol machine they can rely on for seasonal cutting without the weight or cost of larger Allmäher units. The swivel front wheel can be locked for better control on angled ground, and the comfort handlebar adjusts quickly for different operators. Suffolk Mowers supplies the AS 21 4T Comfort with setup guidance and a full 2-year AS-Motor warranty.

What the AS 21 4T Comfort Is Built For

The AS 21 4T Comfort is designed for tackling long grass on flatter ground and gentle banking, offering a balance of cutting strength, manoeuvrability and ease of use. Its 51 cm deck makes it a good fit for orchards, larger gardens, allotments and small paddocks where a standard rotary mower would choke but a heavy rough-cutter would be unnecessary. It’s built for users who want a durable, no-nonsense petrol machine that can be put to work without a learning curve.

Cutting Performance

The Briggs & Stratton 850E engine delivers solid torque through long grass up to around 60 cm. The wing blade uses friction discs and a third crankshaft bearing to protect the engine from hidden stones or debris, keeping repair costs low and gearbox damage unlikely. Cutting height is adjustable between 55–80 mm using front and rear settings.

Manoeuvrability and Handling

The 3-wheel design is the heart of the machine’s flexibility. The front caster wheel allows tight turning around orchard trees and boundary posts, and it can be locked to stabilise the mower when working across slight slopes. Rear-wheel drive gives predictable forward pull without making the mower feel heavy, helping the AS 21 keep good pace even on uneven ground.

Where It Sits in the AS-Motor Range

• More affordable and lighter than the AS 26 – ideal for moderate terrain rather than steep banks.
• More capable than consumer “rough cut” mowers – higher build quality, better engine protection and stronger torque.
• Simpler and more manageable than the AS 63 – no differential lock or slope-specific engineering, making it easier for casual users.

Practical Ownership

The Comfort handlebar adjusts without tools and folds for transport, making it easier to move between jobs or store in smaller sheds. The 5-litre fuel tank offers long working time between stops, especially useful for orchard rows and field edges. With only one forward speed and simple controls, the AS 21 4T Comfort suits users looking for reliability over complexity.

Useful Accessories

• Rear wheel brake – improved control on angled ground.
• Hand guard set – added protection in bramble areas.
• Tilt meter – helps operators monitor slope angles safely.
• Special blade – ideal for sandy or abrasive soil conditions.

Who This Model Suits

The AS 21 4T Comfort is a sensible choice for landowners, orchard managers, gardeners and small commercial users who need a reliable machine for seasonal long-grass control. It works well for properties with mixed terrain, light slopes and plenty of obstacles, giving users a simple, dependable way to keep rough areas under control without stepping into heavier Allmäher or flail-type machines.

Support From Suffolk Mowers

Suffolk Mowers supplies the AS 21 4T Comfort with clear setup guidance, blade checks and straightforward operating advice, making it easy to get the mower working properly from day one. If you need accessories such as hand guards, a tilt meter or a special blade for sandy soil, we keep these options in stock and can recommend the right setup for your ground.

All AS-Motor machines come with a 2-year warranty, which we handle directly. If you ever have an issue with the engine, drive or cutting system during normal use, we take care of the claim and keep downtime to a minimum. Our workshop also offers servicing, blade replacement and seasonal maintenance so the AS 21 4T Comfort stays reliable year after year.

Technical Specifications

Frequently Asked Questions About AS 21 4T Comfort