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Q6 Edge 2.0

Optional 10" of power adjustable safe seat elevation at speeds up to 3.2 mph is available

4Front - Elevated

The 4Front® is a quiet, more responsive front-wheel drive power chair that features automotive-grade suspension with unprecedented comfort and ride quality. The 4Front's CASE (Caster Angle Sensor Encoder) technology and SRS (Smooth Ride Suspension) provide stability for smooth obstacle transitions and unmatched driving performance. The 4Front features standard speeds of up to 6 mph in the lowered position, and speeds up to 3.2 mph while elevated at 10" with our optional safe seat elevation. Standard LED fender lights allow you to see and be seen.

Available in 17 Brilliant Colors

(Mouse-over to change shroud colors)

Pretty in Pink

Lime Light

Yellow Blaze

Deep Purple

Orange Crush

Electric Blue

Red Corvette

White Satin

Grey Street

Midnight Blue

Silver Bullet

Back in Black

Night Train

Military Green


Carbon Fiber Military Digital Camo Faded Glory

Through research, we found that consumers wanted a front-wheel drive chair with suspension that addresses real-world needs. The industry did not want another me-too product; they wanted suspension that addressed ride quality, performance, and safety. We looked at top suspension systems in other industries, especially automotive, and spent two years evolving what is now SRS (Smooth Ride Suspension) on the 4Front®.

The result is a power chair suspension that uses automotive-grade components and engineering to create performance and stability, with optimized user ride comfort. SRS is made up of four coil-over, gas-charged shocks that provide an ultra-smooth and quiet ride. The geometry in which the shocks are integrated into the power base allows independent wheel and caster travel, with the additional effect of stabilization delivering optional safe seat elevation up to 10" at 3.2 mph.

With the 4Front providing unmatched performance over multiple terrains, Q-Logic 3 offers an advanced safety traction mechanism that will sense any reduction in traction. If the chair senses a reduction in traction, it will automatically revert to a 1.2 mph driving inhibit to ensure safe driving. The normal drive speeds resume once the user brings the chair to a stop and the joystick is centered.

Therapists from around the country test drove the 4Front at our annual design forums. The overwhelming response was that it drives much smoother than other front-wheel drive power chairs in the industry.

Rotate and Zoom


  • CASE (Caster Angle Sensor Encoder) technology
  • Unmatched driving performance and ride quality
  • Advanced stability for smooth obstacle transitions
  • Superior, automotive-grade SRS (Smooth Ride Suspension)
  • Q-Logic 3 EX Advanced Drive Controls
  • LED front and rear fender lights
  • Quiet ride technology
  • Available with WC19 crash-test approved, occupied transit option with all configurations


Power Base Accessories

LED Fender Lights

LED fender lights

Standard switch-operated LED fender lights offer great benefits and features for increased visibility. With lighting mounted to the fender, above the drive tire on each side, fender lights help ensure that you can see and be seen.

  • Slim-line fender integration for ultimate compactness and durability
  • Ultra-bright, long-life LEDs allow optimal user visibility at night
  • White front lighting and red rear tail lighting
  • Positioning of lights increases pedestrian visibility from a wide range of angles
Drive Wheel Accent Colors

Drive Wheel Accent Colors

  • Match your base, back, and controller shrouds or choose a different color for a unique look
  • Available in all color options
  • Standard on the 4Front®

Compatible Seating

TRU-Balance 3 Power Positioning Systems
TRU-Balance 3 Power Positioning Systems

TRU-Balance® 3 Power Positioning Systems

TRU-Balance® 3 Power Positioning Systems feature an innovative design that maximizes functional independence while providing an appealing look and feel. TRU-Balance 3 has the ability for quick and easy fine-tuning adjustments to ensure maximum comfort and positioning. Optional 10" of safe seat elevation is offered on the 4Front®.

Contoured Seating
Contoured Seating

Contoured Seating

Contoured seating is the standard seating option on Quantum Power Chairs. Contoured seating features a black vinyl Captain's seat with options consisting of a high back or medium back, solid seat pan, limited recline, and depth adjustability. It is selected when special positioning is not required.

Compatible Electronics

Q-Logic 3 Advanced Drive Control System
Q-Logic 3 Advanced Drive Control System

Q-Logic 3

The Q-Logic 3 Advanced Drive Control System from Quantum Rehab® is like no other power wheelchair electronics system. Designed from clinician and consumer feedback, Q-Logic 3 is user-friendly and highly customizable. This adaptable, expandable control system can increase and maximize independence.


Drive Wheels14" flat free
Optional: 14" Pneumatic, 14" Knobby
Caster WheelsRear: 9" flat free
Anti-Tip WheelsFront: 4"
Maximum Speed4Up to 6 mph
Ground Clearance3" (motor pivot)
Turning Radius524.5"
Overall Length40"
Base Width24"
Seating SizesTRU-Balance® 3
Synergy®/Static: W: 12-22" D: 12-22"
Power Tilt: W: 12-22" D: 12-22"
Lift & Tilt: W: 12-22" D: 12-22"
Seat-to-Floor Heights16TRU-Balance® 3
Synergy®/Static8: 15.25-17.25"
Power Tilt8: 17.5-19.5"
Lift & Tilt8: 17.75-19.75"
Manual Recline10Yes
Battery Size6Group 24 or Group 34
Battery Weight14Group 24: 51.5 lbs.
Group 34: 38.5 lbs.
Available Electronics12120A Q-Logic 3 EX
Battery Charger8A Off-board
Motor PackagesTwo-pole, front-wheel drive
Weight Capacity7300 lbs.
Base Weight140 lbs.
Medicare Code CoverageGroup 3:
Standard (K0848/K0849)
Single Power (K0856)
Multiple Power (K0861)
4 Speed varies with user weight, terrain type, battery charge, battery condition and tire pressure.
5 Without front riggings
6 Battery capacity may change when adding power positioning systems.
7 Weight capacity is dictated by the selection of seating.
8 All measurements +/- 1/8" with 18" x 18" seat, fixed towers, 300 lbs. weight capacity and solid tires (add 3/8" with pneumatic tires). Depths may increase seat-to-floor height. Contact Customer Service for details. Limited measurements are in the lowest position; does not include elevating system unless specified.
12 All Quantum Rehab® units can be ordered with specialty controls
14 Battery weight may vary +/- 3 lbs. based on manufacturer.
16 Seat-to-floor heights are measured with the unit unloaded. Due to the 4Front’s suspension system, seat-to-floor heights are approximately 0.25” lower when the unit is loaded.

The information contained herein is correct at the time of publication; we reserve the right to alter specifications without prior notice.

4Front Power Chair Reviews

Jean-Marc P.

Mont-Laurier, Quebec


5 stars


The suspension of my 4Front is so smooth, even in my bumpy gravel driveway!


Ray Y.

Austin, TX


5 stars


A great chair! I love it and I get to be mobile again, indoors and out.


Jeff S.

Oklahoma City, OK


3 stars


Would be a great chair if the "wear and tear" parts didn't fail so quickly.


Carol C.

San Francisco, CA


4.5 stars


My 4Front turns on a dime in a crowded train, and the height means I’m eye-to-eye with my fellow commuters.


Erin F.

Somerville, MA


5 stars


I like the smooth ride on the 4Front.


Kevin G.

Beverly, MA


5 stars


I love the suspension and the power adjustable safe seat elevation.


Christian B.

Scranton, PA


5 stars


I love the 4Front! The suspension system is the best I've experienced!


About Quantum Rehab

Quantum Rehab® was born out of the desire to delight customers with the most advanced, consumer-inspired complex rehab power wheelchairs and related technologies possible.

At Quantum, consumer needs and wishes are the driving force. We’re dedicated to not just meeting medical and clinical needs, but also quality-of-life needs. From the most advanced power seating for pressure management to USB ports, Bluetooth and fender lights, no consumer need is overlooked.

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Quantum Rehab
401 York Avenue
Duryea, PA 18642

1-833-QiLevel (745-3835)

Monday - Friday
8:30am - 5:00pm ET