Description
The Ki Mobility Axiom PB back is the shallowest rigid back in the Axiom family. It fits wheelchair frames 12 to 22 in wide and comes with an adjustable lumbar pad and mounting hardware.
What does it do and how does it work?
It supports the trunk with a shallow curve, leaving the shoulders and arms free.
- Contour: a 2.25 in (5.7 cm) lateral curve shaped for the lumbar spine.
- Shell: formed aluminium with dual mounting slots; height adjusts independently of the hardware.
- Foam and cover: 1.3 in (3.3 cm) foam under a breathable nylon-spandex cover.
- Adjustment: 3.3 in (8.3 cm) height, 2 in (5.1 cm) width, 1.5 in (3.8 cm) depth and 20 degrees of angle.
Who is it for, and who should choose something else?
It suits a rider who needs trunk support without a deep side wrap.
- Choose the Axiom PL posterior lateral back for a 3.65 in (9.3 cm) contour with more side support.
- Choose the Axiom custom back when the rider needs a made-to-measure back.
An occupational therapist or physiotherapist chooses the contour and size in a seating assessment.
Will it fit?
Order by wheelchair frame width: 12, 14, 16, 18, 20 or 22 in (30 to 56 cm).
- Back width: about 2 in (5 cm) narrower than the frame.
- Heights: low 8, 10 or 12 in (20, 25 or 30 cm); mid 14, 16 or 18 in (36, 41 or 46 cm). The foam adds 2 in (5 cm).
- Part numbers: AXPB plus width and height; the 22 in width comes only at 10, 14 and 18 in high.
Using it day to day
The back comes assembled.
- Removing it: DEX and BTX release with a lever or latch; FXT and LWX stay fixed.
- Cleaning: the cover machine washes at 60 C (140 F) and line dries without heat; wipe the shell with soap and water.
- Checking it: inspect the cover, foam and hardware monthly; stop if the foam breaks down or the hardware loosens.
What does it work with, and what are its limits?
Ki Mobility rates capacity by hardware.
- User weight: 300 lb (136 kg) with the DEX or FXT mount; the BTX mount raises it to 400 lb (181 kg).
- Low backs: 8, 10 and 12 in backs take no headrest or posture support.
- Vehicle use: the wheelchair must be tested to ISO 7176-19, and the back top no more than 5.5 in (14 cm) below the shoulder top.
- Warranty: 24 months; covers 6 months.
How does it compare?
- The Axiom PL is the next contour up.
- The Prism Ultra back has a 6 in (15 cm) lateral contour and a 250 lb (113 kg) capacity.
- The Lunar heavy duty mid back is a 500 lb (227 kg) back, 22 to 32 in wide.
Frequently asked questions
Which hardware should I choose?
DEX or BTX if the back must come off, FXT or LWX if it stays fixed. Only BTX is rated to 400 lb (181 kg).
Can a low back take a headrest?
No. The 8, 10 and 12 in low backs take no headrest or posture support; choose a mid height.
Does it fit a chair wider than 22 in?
No. The PB stops at a 22 in frame width; the Lunar heavy duty back goes to 32 in.
Funding help for a wheelchair back in Ontario
The posterior back is on ADP's product list in two width groups, 12 to 20 in and 22 in, and the therapist's prescription decides which applies. Mobility Specialties is an ADP registered vendor; see how ADP works with us.
Specifications
- Weight capacity
- 300 lb (136 kg) with the DEX or FXT mount; 400 lb (181 kg) with the BTX mount
- Product weight
- 3.0 to 6.0 lb (1.4 to 2.7 kg) with DEX hardware, by size
- Sizes
- 30 pairs; AXPB plus width and height. The 22 in width comes at 10, 14 and 18 in only
- Construction
- Formed aluminium shell with dual mounting slots; 1.3 in (3.3 cm) high-resiliency foam
- Cover
- Removable nylon-spandex cover with a waterproof breathable membrane
- Cover care
- Machine wash hot at 60 C (140 F), line dry or tumble without heat; no bleach, iron or dry cleaning
- Adjustments
- Height 3.3 in (8.3 cm), width 2 in (5.1 cm), depth 1.5 in (3.8 cm), angle 20 degrees
- Custom sizes
- No; the Axiom custom back is a separate product
- Back width
- 12 to 22 in (30 to 56 cm) wheelchair frame widths; back about 2 in (5 cm) narrower
- Back height
- Low 8, 10 or 12 in (20, 25 or 30 cm); Mid 14, 16 or 18 in (36, 41 or 46 cm)
- Contour depth
- 2.25 in (5.7 cm) lateral curve
- Lateral support
- None built in; lateral pads are separate options
- Mounting hardware
- DEX, BTX, FXT or LWX, included; selected on the order
- Fits wheelchair widths
- 12 to 22 in (30 to 56 cm) frame widths; up to 2 in (5 cm) width adjustment
- Warranty
- 24 months on shell and foam, 6 months on removable covers; 5-year expected life
- Product type
- Rigid wheelchair back, posterior shell
- Use category
- Positioning
Figures from the manufacturer. Options and seat sizes can change them; we confirm yours before ordering.
Documents
Delivery and service
Delivery and setup
We deliver and set up equipment across Toronto and the GTA, and show you how everything works. Custom and special-order products can take longer; we confirm timing with you before delivery.
Service and repairs
Our technicians service what we sell, at home or in our shop.
Try before you buy
Visit a showroom in Etobicoke or Brampton to try products first, or book a free home assessment.
Warranty
Warranty details
Ki Mobility warrants the Axiom PB back to be free from defects in materials and workmanship from the date of purchase, under normal use.
- Back shell and foam: 24 months.
- Removable covers: 6 months.
- Defective parts are repaired or replaced at Ki Mobility's option, without charge.
- Excludes punctures, tears and burns; damage from neglect, accident, misuse, or improper installation or repair; products modified without Ki Mobility's written consent; and damage from exceeding the weight limit.
- Applies in North America to the first consumer purchase through an authorized Ki Mobility supplier, and is not transferable.
Funding may help pay for this
Mobility Specialties is an ADP registered vendor. Funding may help: see who may help pay.
Questions about this product?
Talk to our team, try it in a showroom, or book a free home assessment. We help with sizing and funding.
