Flexx Heavy Duty Self Propel Wheelchair

£795.00 Ex. VAT, £954.00 Inc. Vat

The Flexx Series is all about comfort, support, and performance. If you are ae user looking for an ideal custom-made wheelchair, explore the many options that the Flexx Series has to offer and find the right combination to match you and your needs. Flexx has a folding backrest as standard for convenient storage and easy handling.

The Flexx HD is the  heavy-duty version of the standard Flexx wheelchair. It can support up to 170kg and features extra large seat options with larger width and depth. The sturdy double cross brace and adjustable centre-of-gravity provide better stability. All the Flexx accessories are compatible with the Flexx HD.


Available in both Transit and Self Propel, the Karma Flexx Heavy Duty is a highly adaptable wheelchair that combines adjustability with strength and longevity. Adjustments include the backrest angle, backrest height, seat depth and seat height, making the Flexx HD suitable for a wide array of body types and specific needs.
The Flexx HD has a modern and attractive style, and is ergonomically designed to make it extremely easy to use.


  • Lightweight Aluminium Frame
  • Adjustable backrest angle
  • 25 rear wheel positions
  • Adjustable axle plate
  • Self propel and transit available
  • Height adjustable flip back armrests
  • Adjustable castor angle
  • Folding back rest
  • Fully Crash Tested

Adjustable Dimensions

The Flexx incorporates many adjustable features to improve comfort, support and mobility such as adjustable backrest angle, backrest height, seat width, seat depth and centre-of-gravity, etc.
Along with the many wheel options, this model highly configurable to suit varying needs.

Foldable Push-bar

Attached to the push handles of the wheelchair, the push-bar makes it easy to push and manoeuvre the wheelchair with just one hand and at the same time reinforces the structure of the wheelchair. It also helps alleviate the pain and fatigue that comes from pushing a wheelchair. There is no need to detach because it folds with the wheelchair for easy storage and transportation.


Product Specification:

Product Model Flexx HD (KM-8022 HD、KM-8522 HD)
Nominal seat width (mm) 500 550 600
Caster x Rear wheel size (in) 7 x 24Q / 8 x 24Q
Maximum user weight (kg) 170
Overall length with legrest (mm) 1100 ~ 1220
Overall width (mm) 720 770 820
Overall height (mm) 930 ~ 960
Folded length (mm) 1050 ~ 1130
Folded width (mm) 320 ~ 330
Folded height (mm) 740 ~ 835
Total mass (kg) 18.1 ~ 19.5
Mass of the heaviest part (kg) 11.3 ~ 12.1
Handrim diameter (mm) 480
Horizontal location of axle (mm) 10
Minimum turning radius (mm) 865 ~ 1020
Minimum turning radius without
user (mm)
810 ~ 925
Pivot width (mm) 1320 ~ 1430
Static stability downhill (X°) >16
Static stability uphill (X°) 11.8
Static stability uphill with
anti-tippers (X°)
Static stability sideways (X°) >16
Seat plane angle (X°) 6
Effective seat depth (mm) 420 ~ 520
Nominal seat depth (mm) 390 ~ 490
Effective seat width (mm) 540 590 640
Seat surface height at front edge (mm) 460 ~ 530
Backrest angle (X°) 12
Seat to backrest angle (X°) 96
Backrest height (mm) 430 / 510
Headrest height above seat (mm) N/A
Leg to seat angle (X°) 98
Footrest to seat distance (mm) 370 ~ 475
Armrest to seat distance (mm) 215 ~ 295
Front location of armrest structure (mm) 355

Additional information


Carry Weight

Quick Release Wheels

Max User Weight

Seat Width

, ,



Go to Top