The Sterling S425 is a road-legal mobility scooter designed for confident outdoor use, combining a reassuring ride with practical controls and bright lighting. It reaches up to 8 mph, has large 30 cm wheels for improved obstacle clearance and a long-range battery option for extended journeys. Adjustable luxury seating and simple controls help make trips easier for both the user and their carer.
Key Benefits
- Road-legal confidence – able to travel on pavements and roads at a safe 8 mph top speed.
- Longer journeys possible – a large battery option gives up to 26 miles of range on a full charge.
- Smoother outdoor ride – increased wheel height and all-round suspension absorb bumps and kerbs.
- Easy transfers – rotating seat and flip-up armrests reduce effort when getting on or off.
- Customisable comfort – adjustable seat height, depth and recline help you find a relaxed driving position.
Key Features
- Road-legal performance with 8 mph top speed
- Large 30 cm wheels for better kerb and obstacle clearance
- All-round suspension and pneumatic tyres for a smoother ride
- Multi-adjustable rotating luxury seat for easier transfers
- Delta handlebar with wig-wag thumb or finger control
- Bright, low-maintenance front and rear LED lighting
- Infinitely adjustable tiller with automatic headlight tilt
Detailed description
The Sterling S425 is built as a practical, road-ready mobility scooter that balances comfort with everyday capability. With its 8 mph top speed and bright front and rear LED lights, it’s intended for confident outdoor use on both pavements and roads. The lighting uses efficient LED technology so you don’t need to worry about frequent bulb changes, and the lights give good visibility in lower light conditions.
Ride quality is a clear focus, thanks to all-round suspension, pneumatic tyres and a raised wheel height of 30 cm (12 in). Those larger wheels improve clearance over typical obstacles such as dropped kerbs and uneven paving, helping the scooter glide more smoothly over outdoor surfaces. A spacious footwell also helps you find a comfortable leg position for longer trips.
Comfort and transfers are made straightforward by the multi-adjustable luxury seat, which adjusts for height, depth and recline and rotates to aid getting on and off. The flip-up armrests are adjustable for width, angle and depth so you can tailor the position for safe, comfortable transfers. Seat height adjusts between 45 and 50 cm to suit a range of users.
Controls are simple and flexible. An ergonomic delta handlebar with the wig-wag control lets you drive using either thumbs or fingers, and an infinitely adjustable tiller helps you find the right reach and posture. The headlight tilts automatically with the tiller so the beam stays aligned as you change the handle angle. Manoeuvrability is helped by a tight turning radius for its class.
Underneath, the scooter is built to carry a substantial load while remaining stable. It supports a maximum user weight of 150 kg and has a robust overall weight of 117 kg. The scooter can manage modest slopes when used within its safe limits and is intended for everyday outdoor journeys.
Technical Specifications
| Maximum user weight | 150 kg |
| Maximum speed | 8 mph (12.9 km/h) |
| Battery specification | 55 Ah x 2 |
| Maximum range | 26 miles (42 km) |
| Wheel diameter | 30 cm (12 in) |
| Castor wheel diameter | 30 cm (12 in) |
| Drive wheel diameter | 30 cm (12 in) |
| Width | 66 cm (26 in) |
| Length | 135 cm (53 in) |
| Seat height | 45–50 cm (18–20 in) |
| Turning radius | 1.5 m (59 in) |
| Weight | 117 kg (18.4 stone) |
| Maximum safe slope | 8° at 150 kg |
Who is this product for?
- Anyone looking for an upgrade from a compact boot scooter to a more capable road scooter.
- People who need a comfortable, adjustable seat for longer trips and easier transfers.
- Users who want a stable ride over pavements, light outdoor terrain and kerbs.
- Carers seeking straightforward controls and supportive seating adjustments.
Important Information:
- This scooter requires 55 Ah batteries. Have batteries and any installation handled by a qualified service agent.
- Check local rules for road and pavement use before riding in public areas.
- Make adjustments to the seat and tiller while the scooter is stationary to ensure safe, stable transfers.