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Fortress

Fortress S425 mobility scooter by Sunrise Medical

The Fortress S425 is Sunrise Medical's four-wheel outdoor scooter, rated 330 lb (150 kg), with a 12 km/h top speed, a 119 in turning radius and suspension at every wheel.

  • Driving range: 25 km (15.5 mi) to ISO 7176-4 at 100 kg; 42 km (26 mi) benchmark potential
Weight capacity
330 lb150 kg
Product weight
258 lb (117 kg) with batteries
Top speed
12 km/​h7.5 mph
Turning radius
119 in3.03 m
Tires
12 in (300 mm) pneumatic
Quote only

Priced by quote: your written quote confirms current pricing, options and availability.

What is included?

The S425 with two 55 Ah batteries, the 8 amp charger, two mirrors and the large wire front basket. A rear storage bag, storage cover and heavy duty suspension kit are separate.

  • Delivery and setup Across Toronto and the GTA: we set it up, show you how it works and service it at home or in our shop. Call (905) 798-1853
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Brand
Fortress

Description

The Fortress S425 is a four-wheel outdoor scooter from Sunrise Medical, rated 330 lb (150 kg), with a 12 km/h top speed, a 119 in turning radius and suspension at every wheel.

Who is it for?

A rider to 330 lb who wants a stable four-wheel scooter for pavement and paths, with a large reclining seat, flip-up armrests and legroom. It is not a car-boot scooter: it splits into a 77 lb (35 kg) seat, the batteries and the chassis.

If it must go into a car, see travel scooters. If you need postural support, ask your therapist about a power wheelchair.

How does it drive?

Top speed is 12 km/h (7.5 mph) and the maximum safe slope is 8 degrees at 150 kg. Range is 25 km (15.5 mi) on the ISO 7176-4 test at 100 kg, with a benchmark range of 42 km (26 mi).

Tires are 12" (300 mm) pneumatic at 40 psi, with 23 mm of front suspension travel and 11 mm at the rear.

Braking is regenerative with an electromechanical parking brake, and stopping distance from top speed is 4 m. The LED lighting includes front and rear lights, indicators and brake lights.

Will it fit your home and car?

It is 53" (1345 mm) long and 26" (655 mm) wide. The turning radius is 119" (3.03 m), so it needs a wide arc. Ground clearance is 60 mm and it climbs a 50 mm (2 in) curb forwards only. It does not fold flat; the seat and batteries come off and the tiller folds for storage.

Batteries, charging and care

Two 12 V 55 Ah gel or AGM batteries and an 8 amp automatic charger are included. Charge after each day of use and never charge a frozen battery. We replace worn batteries.

Seat, tiller and controls

The reclining high-back seat is 19" x 19" (490 x 490 mm), with 4" (100 mm) of fore and aft adjustment, a headrest and flip-up armrests. Seat height is 20.6" (523 mm) in three positions. The adjustable tiller has a wig-wag delta handlebar and an LED console.

Colours and options

Red or Urban Grey. Heavy-duty suspension is a factory option. Add-ons include a rear storage bag, a rear walker or wheelchair mount, and a cover.

Funding

Funding may help: see who may help pay.

Delivery and service

We deliver assembled in Toronto and the GTA, set the seat and tiller, and show you how to drive, charge and store it. Our technicians service what we sell.

Sunrise's warranty gives 5 years on the frame and tiller and 2 years on the controller, motor, brake, console and charger.

How does it compare?

The Afiscooter S4 Plus is another full-size four-wheel scooter with a tighter turn. The Buzzaround EX 4-wheel is lighter and breaks into six pieces.

Frequently asked questions

Can I take the S425 apart to move it?

Into three parts: the seat at 77 lb (35 kg), the two batteries at 80 lb (36 kg) together, and the chassis.

Is it safe to leave outside with the cover on?

The cover is made for outside storage, but never drive or move the scooter with it fitted.

Can I fit a rear basket?

It comes with the wire basket on the tiller. A rear basket needs the right rear bar, so check the mount first.

Can I ride it on Toronto sidewalks?

Ontario treats scooter riders as pedestrians; Toronto allows mobility devices on sidewalks, under its own bylaws.

Specifications

Weight capacity
330 lb (150 kg)
Product weight
258 lb (117 kg) with batteries
Folding or disassembly
Batteries and seat remove and the tiller folds for storage. It does not fold flat
Heaviest piece
Seat, 77 lb (35 kg)
Seat width
19 in (490 mm)
Seat depth
19 in (490 mm), adjustable 4 in (100 mm) fore and aft
Seat height
20.6 in (523 mm) to the ground, three positions
Seat type
Reclining high-back seat with a headrest and flip-up armrests
Tiller
Adjustable tiller with a wig-wag delta handlebar and LED console
Tires
12 in (300 mm) pneumatic, 40 psi
Suspension
Full suspension, 23 mm front travel and 11 mm rear travel
Overall width
26 in (655 mm)
Overall length
53 in (1345 mm)
Ground clearance
60 mm (2.4 in)
Turning radius
119 in (3.03 m)
Maximum slope
8 degrees at 150 kg (330 lb)
Driving range
25 km (15.5 mi) to ISO 7176-4 at 100 kg; 42 km (26 mi) benchmark potential
Top speed
12 km/h (7.5 mph)
Brakes
Regenerative and electromechanical, plus a parking brake
Lights
Front and rear LED lighting with indicators and brake lights
Motor
1200 W peak
Batteries
Two 12 V 55 Ah gel or AGM
Available colours
Red or Urban Grey
Battery charger
8 amp automatic cyclic
Warranty
5 years frame weldment and tiller. 2 years controller, motor, brake, console and charger. 1 year shrouds, seat and lights
Product type
4-wheel outdoor scooter

Figures from the manufacturer. Options and seat sizes can change them; we confirm yours before ordering.

Documents

Delivery and service

Delivery and setup

We deliver and set up equipment across Toronto and the GTA, and show you how everything works. Custom and special-order products can take longer; we confirm timing with you before delivery.

Service and repairs

Our technicians service what we sell, at home or in our shop.

Try before you buy

Visit a showroom in Etobicoke or Brampton to try products first, or book a free home assessment.

Warranty

Warranty details

Sunrise Medical warrants the Fortress S425 components for the periods below, against defects in normal use.

  • Main frame weldment, steering column, tiller and tiller gas strut: 5 years.
  • Controller, throttle and harnesses, motor and transaxle, drum brake, wheel rims, console and charger: 2 years.
  • Shrouds, seat weldments, seat upholstery, tires and inner tubes, lights and indicators: 1 year.
  • Excludes brake pads, motor brushes, wheel bearings, chain, fuses, bulbs and arm pads as wear items, cosmetic wear, and equipment modified other than by Sunrise.
  • Labour is not included. Repairs are done by an authorized Sunrise Medical dealer.

Questions about this product?

Talk to our team, try it in a showroom, or book a free home assessment. We help with sizing and funding.

Not sure where to start?

Talk to a specialist. No pressure, no obligation.

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