Quantum 4Front™ Power Wheelchair

by Quantum Rehab        Item #4FRONT
stars, based on reviews

Category: Wheelchairs - Manual, Power, Tilt

Dedicated to revolutionizing the power chair experience.

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.


  • Intuitive CASE (Caster Angle Sensor Encoder) technology
  • Unmatched driving performance and ride quality
  • Advanced stability for smooth obstacle transitions
  • Superior QA1® Independent Suspension system
  • Q-Logic 3 EX Advanced Drive Controls
  • LED front and rear fender lights


  • Superior QA1® Independent Suspension with unmatched driving performance and ride quality
    • “Diamond suspension” due to its shape; the front, rear, left, and right are all independent of each other
    • The ride is so smooth because it uses gas-charged monotube shocks with springs mounted in a coil-over assembly
    • The setup provides the comfort of soft springs with the control of real dampening shocks
    • Very close simulation to automotive suspension because it acts like a control arm
  • Advanced stability for smooth obstacle transition
    • Intuitive CASE (Caster Angle Sensor Encoder) technology
  • Optimal stability when ascending or descending ramps or hills
  • 3.2 MPH safe seat elevation; 10” of elevation at launch
  • Standard with front and rear LED fender lights
  • New shroud color option offered in matte black called Night Train


  • 10” of power adjustable seat height at speeds of up to 3.2 mph
  • TRU-Balance® 3 Seating
  • TRU-Comfort 2 Seating
  • Trilogy vent tray
  • Compact vent tray

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Product Specifications

  • Weight Capacity: 300 lbs
  • Maximum Speed: Up to 6 mph (varies based on user, terrain & battery)
  • Ground Clearance: 3"
  • Turning Radius: 24.5" (without foot riggings)
  • Base Length: 40" (without foot riggings)
  • Seating Sizes: W: 14-22", D: 14-22"
  • Base Weight: 140 lbs

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