Monarch Mobility Onyx Roadworthy Mobility Scooter
Our Take
The Monarch Mobility Onyx Roadworthy Mobility Scooter is a four-wheel Class 3 roadworthy scooter. Monarch publish a top speed of 8 mph on the road and 4 mph on the pavement. Four 25 cm wheels and full suspension give a planted ride.
Monarch rate the Onyx for riders up to 152 kg (24 stone). A full charge covers up to 31 miles on Monarch’s figures, subject to weight and terrain. A 450 W motor handles slopes up to 12 degrees. The turning circle is 1.9 metres, so plan for space indoors.
This is a big machine. Monarch publish 92 kg with its two 55 Ah lead-acid batteries fitted, and no weight without them. It does not fold, and Monarch publish no piece weights. So it stays out of a car boot and needs a ramp and solid storage. Monarch publish no charging time.
The Monarch Mobility Onyx suits daily road use and longer trips. A heated captain’s seat and heated handlebars help on colder days. Anyone who needs to carry a scooter in a car should look elsewhere.
Buyers of 8 mph scooters weigh range against bulk. The Kymco Komfy 8 is a close match on the numbers and stops a little sooner at 20 miles. The Pride Celebrity X is lighter at 90 kg and stops a little sooner at 25 miles. The Freerider City Ranger 8 is lighter at 90 kg. Each is worth weighing up before you commit.
The Onyx earns its place on range and comfort, with sat nav and a lockable rear box. Even so, nothing beats trying a model yourself before you commit. To compare prices near you, try the Find this Product Near Me search. Buyer’s Guide covers the key things to check.
The Basics
- Scooter Class
- Class 3
- Brand
- Monarch Mobility
- Number of Wheels
- 4
- Pavement Use
- Yes
- Road Use
- Yes
- Max Speed mph
- 8 mph
- Max Range (Approx.)
- 31 miles
- Total weight — with battery
- 92 kg
- User Weight Capacity
- 152 kg
- Folding
- No
Key Specifications
- Battery
- 2 x 55 Ah lead-acid
- Charging Time
- Not stated by manufacturer
- Tyre Type
- Not stated by manufacturer
- Seat Type
- Heated captain's seat, 46 cm wide
Key Features
- Heated captain's seat and heated handlebars
- Digital display with Bluetooth sat nav
- Full suspension and 450 W motor
- Lockable rear storage box
- Daytime running lights and USB charging
Model Dimensions
- Width (cm)
- 68
- Height (cm)
- 130
- Length (cm)
- 128
- G/Clearance (cm)
- 6
Monarch
Monarch Mobility is a UK-based manufacturer of mobility scooters and powerchairs. They are known for producing a wide range of models, from compact boot scooters to robust outdoor vehicles.





