ProBasics K4 Transformer Hybrid Transport Wheelchair
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The ProBasics TRANSFORMER is a versatile 2-in-1 mobility solution that converts from a self-propelled manual wheelchair into a compact caregiver-assisted transport chair. Its lightweight, high-strength aluminum frame combines independent mobility with convenient assisted transportation, making it ideal for home use, appointments, travel, and outings through narrow spaces.
In wheelchair mode, 24-inch quick-release rear wheels with composite handrims allow the user to propel the chair independently. When a caregiver-assisted transport configuration is preferred, the large rear wheels can be removed to use the bolted 8-inch transport wheels. This convertible design eliminates the need to purchase, store, and transport two separate mobility chairs.
Eight-inch full-swivel front casters mounted on durable aluminum forks provide responsive maneuverability. Dual-function aluminum wheel locks accommodate both rear-wheel configurations, while detachable flip-up anti-tippers provide additional rearward stability.
Flip-back padded desk-length armrests create easier side access for transfers and allow the user to approach tables and desks more closely. Self-locking paddle releases help secure the armrests during use.
For convenient storage and vehicle transportation, the TRANSFORMER features a folding frame and fold-down backrest with quick-release paddles. Lightweight black woven nylon upholstery provides breathable comfort and simplifies routine cleaning.
Standard footrests include heel loops and composite footplates for lower-leg support. Optional elevating leg rests are available under model WCT4ELR for users who require adjustable leg positioning.
The K4 Transformer Is Ideal for:
✔ Independent wheelchair mobility
✔ Caregiver-assisted transportation
✔ Home and community use
✔ Medical appointments
✔ Shopping and errands
✔ Narrow indoor spaces
✔ Vehicle transportation
✔ Travel and day trips
✔ Rehabilitation and recovery
✔ Users who alternate between self-propelled and transport modes
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Dual-Purpose Mobility Design
Converts from a self-propelled wheelchair into a compact caregiver-assisted transport chair. -
High-Strength Aluminum Frame
Provides durable support without the unnecessary bulk of a traditional steel wheelchair. -
24-Inch Quick-Release Rear Wheels
Detach quickly to simplify conversion, storage, and transportation. -
Composite Handrims
Allow the user to propel the wheelchair independently in manual wheelchair mode. -
Bolted Eight-Inch Transport Wheels
Remain securely attached for convenient use after the large rear wheels are removed. -
Full-Swivel Front Casters
Eight-inch casters provide responsive steering and maneuverability in accessible indoor environments. -
Dual-Function Wheel Locks
Operate with either rear-wheel configuration to help secure the chair when stationary. -
Flip-Back Desk-Length Armrests
Create easier side-transfer access and allow the chair to approach desks and tables. -
Self-Locking Paddle Releases
Provide convenient armrest operation while helping maintain a secure configuration. -
Fold-Down Backrest
Uses quick-release paddles to create a more compact profile for transportation and storage. -
Folding Frame
Collapses easily for placement in many vehicle trunks and cargo areas. -
Woven Nylon Upholstery
Provides a lightweight, breathable seating surface that is easy to maintain. -
Rear Anti-Tippers
Flip up or detach as needed while providing additional rearward stability during use. -
Integrated Accessory Pouch
Keeps small personal belongings conveniently within reach. -
Standard Footrests with Heel Loops
Support the feet and help maintain lower-leg positioning. -
Optional Elevating Leg Rests
Model WCT4ELR provides adjustable leg elevation for users with additional positioning needs.
Specifications
| Seat Width | 16″, 18″, 20″ |
|---|---|
| Seat Depth | 16″ |
| Seat-to-Floor Height | Adult: 20″ |
| Back Height | 16″ |
| Back Style | Fold-Down |
| Overall Width with Arms | 18″–29″ |
| Overall Depth | 28″–32″ without riggings |
| Weight Capacity | 250 lbs. |
| Product Weight | 32–34 lbs. |
| Carton Dimensions | 33″ x 13″ x 37″ |
| Shipping Weight | 35–37 lbs. |
| Warranty | Limited lifetime on frame; one year on all parts |
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FAQs
Frequently Asked Questions
Tap a question below to view the answer.
What is the ProBasics TRANSFORMER?
The ProBasics TRANSFORMER is a dual-purpose mobility chair that converts between a self-propelled manual wheelchair and a compact caregiver-assisted transport chair.
How does it convert into a transport chair?
The 24-inch quick-release rear wheels are removed, leaving the bolted 8-inch transport wheels in place. Follow the manufacturer’s instructions to confirm that the chair is correctly configured before use.
Can the user propel the chair independently?
Yes, when the 24-inch rear wheels and composite handrims are installed. The user can push the handrims to propel the chair in manual wheelchair mode.
Can the user propel the chair in transport mode?
No. After the 24-inch wheels are removed, the chair must be pushed by a capable caregiver.
Why would someone use transport chair mode?
Removing the large rear wheels creates a more compact configuration that can be easier for a caregiver to maneuver through narrow spaces and transport in a vehicle.
What is the frame made from?
The TRANSFORMER has a high-strength aluminum frame designed to provide durable support without the bulk of a traditional steel wheelchair.
Are the 24-inch rear wheels removable?
Yes. The large rear wheels feature quick-release axles for convenient conversion, storage, and transportation.
Do the 8-inch transport wheels need to be installed during conversion?
No. The 8-inch transport wheels are bolted to the frame and remain in place when the 24-inch wheels are removed.
What size are the front casters?
The chair has 8-inch full-swivel front casters mounted on aluminum forks.
Do the wheel locks work in both configurations?
Yes. The dual-function aluminum wheel locks are designed to operate with both the 24-inch wheelchair wheels and the 8-inch transport wheels.
Should the wheel locks be engaged during transfers?
Yes. Engage both wheel locks and confirm that the chair is stable before sitting, standing, or transferring.
Do the armrests flip back?
Yes. The padded desk-length armrests flip back to create additional side access during transfers.
What are desk-length armrests?
Desk-length arms are shorter than full-length armrests, allowing the chair to approach many tables and desks more closely.
How are the armrests released?
The armrests use self-locking paddle releases. Follow the manufacturer’s instructions to operate and secure them correctly.
Does the backrest fold?
Yes. Quick-release paddles allow the backrest to fold down for more compact storage and vehicle transportation.
Does the wheelchair frame fold?
Yes. The frame folds inward to reduce its width for storage and travel.
What type of upholstery does it have?
The TRANSFORMER features lightweight black woven nylon upholstery designed for breathable comfort and easier routine maintenance.
Are anti-tippers included?
Yes. Detachable flip-up rear anti-tippers provide additional rearward stability when installed and positioned correctly.
Does the chair include storage?
Yes. An integrated accessory pouch provides convenient storage for small personal belongings.
What leg supports are included?
Standard footrests with heel loops and composite footplates are included.
Are elevating leg rests available?
Yes. Optional elevating leg rests are available under model WCT4ELR.
What is the difference between footrests and elevating leg rests?
Standard footrests support the feet in a fixed lower position. Elevating leg rests allow the lower legs to be raised and positioned at different angles.
What are the HCPCS codes?
The base wheelchair is associated with HCPCS code K0004. Optional elevating leg rests may use codes K0195 or E0990.
Do the HCPCS codes guarantee insurance coverage?
No. Coverage depends on medical necessity, eligibility, documentation, supplier participation, and the terms of the individual Medicare or insurance plan.
Can the TRANSFORMER be used as a seat in a motor vehicle?
Do not occupy the chair in a moving vehicle unless the manufacturer specifically confirms that the selected configuration is crash tested and transit approved. Transfer the user to the vehicle’s installed seat whenever possible.
Is the chair suitable for vehicle transportation?
The folding frame, fold-down back, and removable 24-inch wheels create a compact configuration for many vehicle trunks and cargo areas. Compare the folded dimensions with the available vehicle space before purchasing.
What are the seat dimensions and weight capacity?
Seat dimensions and weight capacity were not included in the supplied information. Confirm these specifications for the exact model before ordering to ensure a proper fit.
Who may benefit from the ProBasics TRANSFORMER?
It may be suitable for users who want independent manual wheelchair mobility but also need a compact caregiver-assisted transport option for outings and narrow spaces.
Is professional fitting recommended?
Yes. A qualified mobility professional can help confirm the appropriate seat size, weight capacity, arm style, leg supports, and overall configuration for the user.
Warranty
- Warranty: Limited lifetime on frame; one year on all parts
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