Description
The Quantum 4Front 2 HD is a front-wheel power base, rated up to 450 lbs (204 kg), or 400 lbs (181 kg) with the 10 in (25.4 cm) seat lift.
What does it do and how does it work?
- Front-wheel drive: four-pole motors drive 14 in (35.6 cm) flat-free front wheels, with 9 in (22.9 cm) rear casters and 4 in (10.2 cm) front anti-tips.
- Suspension: automotive-grade SRS with HD suspension, and Smart Traction Control that corrects course on rough ground.
- Capacity: up to 450 lbs, or 400 lbs with the 10 in lift; the seating sets the final rating.
- Speed: up to 5 mph (8 km/h), or 2.7 mph (4.3 km/h) when elevated.
- Electronics: 120A Q-Logic 3e standard and 120A Q-Logic 3 optional, with an 8A off-board charger.
- Lighting: LED front and rear fender lights standard, with a backup camera optional.
Who is it for, and who should choose something else?
- It suits a rider up to 450 lbs (204 kg) who wants front-wheel drive and a wide HD seat.
- It suits outdoor use on rough ground with STC and SRS.
- Choose a mid-wheel base for a tighter indoor turn, or a folding chair for a car boot.
Will it fit?
- Rider: 450 lbs (204 kg), or 400 lbs (181 kg) with the lift; HD seats 20-24 in (50.8-61 cm) wide.
- Seat depth and height: static 20-24 in deep and 16.5-18.5 in high; power tilt 20-22 in deep and 18.5-20.5 in high; lift and tilt 20-22 in deep and 18.75-20.5 in high.
- Base: 24 in (61 cm) wide, 39.7 in (100.8 cm) long without riggings, 24.5 in (62.2 cm) turn.
- Ground: 2.6 in (66 mm) clearance at the motor pivot; the base weighs 140 lbs (63.5 kg).
Using it day to day
- Charge through the controller socket with the 8A off-board charger; if the LED is not complete within 24 hours, unplug and call.
- Freewheel: push both levers down to disengage the motors and pull them up for drive; use level ground only.
- Transport: four labelled tie-down points and four straps, forward-facing; never raise the seat while secured, and never use the freewheel levers as tie-downs.
- Before driving, check the charge and that both freewheel levers are up.
- New batteries need a full charge, a short run and another full charge, several times.
What does it work with, and what are its limits?
- Stay within 450 lbs (204 kg), or 400 lbs (181 kg) with the lift.
- The 10 in lift lowers the speed to 2.7 mph (4.3 km/h).
- Seating, electronics and riggings are chosen in the build.
- Warranty: lifetime frame; 2 years electronics, motors, actuators and riggings; 6 months bearings; 12 months batteries.
Which version should I choose?
- Seating: TRU-Balance 3 HD static, power tilt or lift and tilt.
- Electronics: Q-Logic 3e standard or Q-Logic 3 optional.
- Options: 10 in elevation, backup camera, and 14 in knobby or pneumatic wheels.
- Colours: 14 solid colours plus hydrographic camo.
How does it compare?
- The Quantum Edge 4 is a mid-wheel base that turns in 22.8 in (57.9 cm).
- The Quantum 1450 is a heavier front-wheel bariatric base.
- See all standard power wheelchairs.
Frequently asked questions
Does the 10 in lift reduce capacity?
Yes. With the 10 in lift the rating is 400 lbs (181 kg) and the speed limit is 2.7 mph (4.3 km/h).
Can I raise the seat in a vehicle?
No. Never raise or elevate the seat while the chair is secured for transit.
Which electronics are standard?
Q-Logic 3e is standard; Q-Logic 3 is optional.
Funding may help: see who may help pay.
Specifications
- Weight capacity
- Up to 450 lbs (204 kg); up to 400 lbs (181 kg) with the 10 in seat lift
- Product weight
- Base 140 lbs (63.5 kg); Group 24 battery 51.5 lbs (23.4 kg), plus or minus 3 lbs
- Seat width
- 20-24 in (50.8-61 cm) on TRU-Balance 3 HD static, power tilt and power lift and tilt
- Seat depth
- 20-24 in (50.8-61 cm) HD static; 20-22 in (50.8-55.9 cm) power tilt and lift and tilt
- Seat height
- HD static 16.5-18.5 in (42-47 cm); power tilt 18.5-20.5 in (47-52 cm); lift and tilt 18.75-20.5 in (47.6-52 cm)
- Seat elevation
- Optional 10 in (25.4 cm), driving at up to 2.7 mph (4.3 km/h)
- Drive wheel size
- 14 in (35.6 cm) flat free; optional knobby or pneumatic
- Caster size
- 9 in (22.9 cm) rear flat free; 4 in (10.2 cm) front anti-tip wheels
- Suspension
- Automotive-grade SRS with HD suspension
- Overall width
- 24 in (61 cm) base width
- Overall length
- 39.7 in (100.8 cm) without front riggings
- Ground clearance
- 2.6 in (66 mm) at the motor pivot, occupied
- Turning radius
- 24.5 in (62.2 cm) without front riggings
- Top speed
- Up to 5 mph (8 km/h); up to 2.7 mph (4.3 km/h) elevated
- Motors
- 4-pole, front-wheel drive
- Controller
- 120A Q-Logic 3e standard; 120A Q-Logic 3 optional
- Battery
- Group 24, 51.5 lbs (23.4 kg) each, plus or minus 3 lbs
- Available colours
- 14 solid colours including Night Train, Blue Jean and Red Corvette, plus hydrographic camo
- Battery charger
- 8A off-board
- Warranty
- Lifetime frame; 2 years electronics, motors, actuators and riggings; 6 months bearings; 12 months batteries
- Product type
- Front-wheel heavy-duty power base
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
Quantum Rehab warrants the 4Front 2 HD to the original purchaser from the date of purchase, and repairs or replaces parts that an authorized Quantum representative finds defective in material or workmanship.
- Main frame: lifetime limited warranty.
- Electronics (controller, joystick and charger), motor and gearbox, power seat actuator, forks, caster beam, seat framing, front riggings, wiring, electronic brake function and accessories: 2 years.
- Bearings and bushings: 6 months.
- Quantum batteries: 12 months from the invoice date.
- Warranty service is done by a Quantum Rehab provider. Labour, service calls and shipping are not covered unless Quantum approves them in advance.
- Excludes wear items (plastic shrouds, motor brushes, upholstery and seating, brake pads, tires and tubes, fuses and bulbs), abuse, misuse, accident, neglect, contamination, battery leakage, commercial use, and improper operation, maintenance or storage.
Warranty manual
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.
