Dare to move forward, quietly

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

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Product Features

LED fender lights offer great benefits and features for increased visibility.

  • 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

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Overall Width

60.96 cm (24")

Overall Length

101.6 cm (40")

Max User Weight

21 Stone 6 lbs (137 kg)


TB3 Seating: 12" x 12" to 22" x 22"

Min. Wheelchair Weight

63.5 kg


6 mph (with lights)

Battery size

2 x 70 Ah Deep Cycle / Weight: 23.36 kg

Turning Radius

62.23 cm (24.5 cm)

  • Swift, comprehensive delivery and set up of the product.
  • 1 year’s manufacturer’s warranty.
  • Full service and warranty back-up with our on-site engineers.
  • Professional on-going support with additional visits if required.