Drive Wheels: 14″ flat free
Optional: 14″ Pneumatic, 14″ Knobby
Caster Wheels Rear: 9″ flat free
Anti-Tip Wheels Front: 4″
Maximum Speed: 4 Up to 6 mph
Ground Clearance: 3″ (motor pivot)
Turning Radius: 5 24.5″
Overall Length: 40″
Base Width: 24″
Seating Sizes: TRU-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 Heights: 16 TRU-Balance® 3
Synergy®/Static: 8: 15.25-17.25″
Power Tilt8: 17.5-19.5″
Lift & Tilt8: 17.75-19.75″
Manual Recline: Yes
Battery Size: Group 24 or Group 34
Battery Weight: Group 24: 51.5 lbs.
Group: 38.5 lbs.
Available Electronics: 120A Q-Logic 3 EX
Battery Charger: A Off-board
Motor Packages: Two-pole, front-wheel drive
Weight Capacity: 300 lbs.
Base Weight: 140 lbs.
Medicare Code Coverage Group 3:
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
7 Weight capacity is dictated by the selection of
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
12 All Quantum Rehab® units can be ordered with
14 Battery weight may vary +/- 3 lbs. based on
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.
What accessories are available for the 4 Front ?
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
Positioning of lights increases pedestrian visibility from a wide range of angles
Drive Wheel Accent Colors
Match your base, back, and controller
shrouds or choose a different color for a
Available in all color options
Standard on the 4Front®
What electronics are compatible with the 4 Front?
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
What seating systems are compatible with the 4
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 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.