AS 990 Tahr RC: The Revolution in Steep Slope Mowing
Discover the AS 990 TAHR RC from AS-Motor – a remote-controlled high grass mower built for steep slopes and extreme terrain. Mows in both directions with maximum efficiency and safety.
Reduced to the essentials and ultra-precise. With LED display of cutting heights, angles and status.
- cutting width: 90 cm
- cutting height: 50 – 140 mm
- engine manufacturer: BS
- engine type: Professional Series 8
- 4-Stroke engine, single-cylinder / twin-cylinder: ○ / ●
- displacement: 724 cm³
- Single knife / cross knife / Y-flail: ○ / ● / ○
Features and Benefits

Intuitive remote control
Reduced to the essentials and ultra-precise. With LED display of cutting heights, angles and status.
track tension indicator
See at a glance whether the belts are correctly tensioned. If necessary, simply retighten with a ratchet.


Cross blade system
Two pendulum blades cut the vegetation and an overlying blade bar recuts and clears the mowing deck. With stainless steel mulching baffle.
Delta crawler chassis
The asymmetrical crawler chassis ensures maximum wrap around the sprockets. Important to prevent the tracks from jumping off.


triple ejection projection
Movable flaps and a double curtain protect the surroundings from thrown objects.
Folding cover
The engine cover can be opened in seconds and brought into a vertical position for easy access to all units.


Direct service points
Tool-free, quick check of the oil level and air filter.
Lashing and lifting points
Solid lashing points and a central lifting point for safe loading, transport and servicing

Manufacturer Warranty
AS-Motor provides a warranty system for professional users, municipalities and property owners.
Technical Data
| cutting width | 90 cm |
| cutting height | 50 – 140 mm |
| engine manufacturer | B&S |
| engine type | Professional Series 8 |
| 4-Stroke engine, single-cylinder / twin-cylinder | ○ / ● |
| displacement | 724 cm³ |
| Single knife / cross knife / Y-flail | ○ / ● / ○ |
| work rate max. | 20,1/27,0 kW (hp) |
| rated power | 16,5/22,4 kW (hp) |
| nominal speed | 3300 rpm |
| speed max. | 5 km/h |
| automatic parking brake | ● |
| side discharge / rear discharge | ○ / ● |
| ill quantity – fuel tank | 14 l |
| closed mower deck | ● |
| Dimension L/W/H | 152x131x72-80 cm |
| weight | 500 kg |
Changes in technology, equipment and price are reserved. No claims can be derived from information or illustrations.
Why buy from us?
At HGM, we're as passionate about customer service as we are about the machines we sell. We go out of our way to help you get the best value and the most out of your purchases. That's why we offer a better, more personal service than any other dealer, both online and in-store.
- We never sell a machine in a box - whether you choose to have your machine delivered, or to collect from our showroom, every machine we sell comes fully assembled, fueled and oiled/fully charged, and ready for you to take home and use straight away.
- We hand-deliver to your door - if you find you're having trouble making your way to our showroom, we can deliver your machine to your door, and our friendly driver will even demonstrate the machine for you if you'd like help getting started with it
- We're here for you even after the purchase - we aren't content to sell you a machine and then walk away. Our phone lines are open 5 days a week for any support or queries about your machine, and if there's an issue with your machine that needs repair, we can take it into our workshop.
- We'll prioritise you if anything goes wrong - in the rare case that something does go wrong, you'll benefit from top-priority warranty support for machines purchased from us directly.
It's all part of our Shop2Shed service - that's the HGM difference!










