ProBasics K4 Transformer Wheelchair Main Image

ProBasics K4 Transformer Wheelchair Dual Function Transformer

ProBasics K4 Transformer Wheelchair Quick Release Axles

ProBasics K4 Transformer Wheelchair Flip-back Armrest

ProBasics K4 Transformer Wheelchair Small Wheels

ProBasics K4 Transformer Wheelchair, by Drive Medical

Drive Medical

$346.00 $299.00

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SKU:: DRI-WCT4-DS
Package Width:: 29.00 (in)
Package Height:: 37.00 (in)
Package Depth:: 32.00 (in)

* Choose Seat Size:

* Elevating Leg Rests - Add $69.00:

* Ribcap Hardy Adult Helmet Hat - Add $299.00:

* Reflective Tote Bag - Add $19.99:

* Wheelchair Armrest Pocket - Add $49.00:

* Wheelchair Rain Poncho - Add $63.00:

* Poli Foam Wheelchair Cushion - Add $40.00:

* Antimicrobial & Water-Resistant Dual-Chamber Gel Cushion - Add $48.00:

* Total Chair Cushion - Add $65.00:

* Liquid Caddy Drink Holder - Add $39.00:

* Seat Belt - Add $24.00:

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ProBasics K4 Transformer Wheelchair

The ProBasics K4 Transformer Wheelchair is a high-strength, lightweight wheelchair featuring 24-inch quick-release rear wheels to convert into a transport chair.

The ProBasics K4 Transformer Wheelchair represents a breakthrough in versatile mobility design, seamlessly transitioning from a self-propelled manual wheelchair to an assisted transport chair. Perfect for active users and caregivers alike, this high-performance convertible wheelchair features an ultralight structural aluminum frame that ensures effortless transportability without compromising structural durability. By utilizing innovative tool-free quick-release rear axles and dual handbrake locks, the K4 Transformer adapts instantly to various environments, whether maneuvering tight indoor spaces or loading into a compact car trunk. Experience unparalleled convenience, style, and long-term therapeutic utility with a multi-functional mobility platform engineered to enhance your freedom of movement.

Drive Medical ProBasics K4 Transformer Wheelchair Features

Dual-Function Transformer Design

Operates seamlessly as both a self-propelled manual wheelchair (24 in rear wheels) and an assisted transport chair (8 in rear wheels).

Tool-Free Quick Release Axles

Pop the large self-propelling wheels off in seconds without any tools to quickly configure the transport profile.

Flip-Back Padded Armrests

Desk-length padded arms flip back cleanly to allow close access to desks, tables, and hassle-free patient side transfers.

Ultralight Aluminum Frame

Designed with an easy-to-manage structural aluminum backbone that weighs only 31.80 lbs (14.42 kg) in propel mode.

Easy-Fold Travel Paddles

Features a fold-down backrest controlled by easy-release paddles, allowing incredibly compact transport in car trunks.

Dual Handbrake Locks

Equipped with 2 complete sets of heavy-duty locks configured specifically for both the 24 in and 8 in wheel orientations.

ProBasics K4 Dual Purpose Wheelchair Specifications

Specification Parameter	Imperial Configuration	Metric Calibration (SI)
Weight Capacity	250.00 lbs	113.40 kg
Standard Product Weight	32.00 lbs - 34.00 lbs	14.51 kg - 15.42 kg
Structural Weight (Without Wheels)	21.60 lbs - 23.80 lbs	9.80 kg - 10.80 kg
Total Shipping Weight	35.00 lbs - 37.00 lbs	15.88 kg - 16.78 kg
Detachable Footrests Weight	3.00 lbs	1.36 kg
Detachable Legrests Weight	7.80 lbs	3.54 kg
Seat Width Options	16.00 in - 20.00 in	40.64 cm - 50.80 cm
Seat Depth	16.00 in	40.64 cm
Seat-to-Floor Height	20.00 in	50.80 cm
Overall Frame Height	37.00 in	93.98 cm
Backrest Structural Height	16.00 in	40.64 cm
Folded Width	10.00 in - 12.00 in	25.40 cm - 30.48 cm
Front Wheel Caster Size	8.00 in	20.32 cm
Rear Wheel Convertible Sizes	8.00 in / 24.00 in	20.32 cm / 60.96 cm
Rear Axle Design	Quick-Release Tool-Free Axle	Convertible Setup
Armrest Style	Desk-Length, Flip-Back Padded	Removable Desk Arm
Upholstery Material	Durable Woven Black Nylon	Standard Base Setup
Footrest Adjustability	Swingaway with Heel Loops / Optional Elevating	Tool-Free Swingaway
Insurance Billing Code (HCPCS)	E0990 - K0195 (Secondary code: E1037)	Dual HCPCS Standard
Structural Frame Warranty	Lifetime Limited Warranty	Lifetime Coverage
Warranty on Wearable Parts	One-Year Limited Warranty	12-Month Coverage
Shipping Carton Dimensions	33 in L x 13 in W x 37 in H	83.8 cm x 33.0 cm x 94.0 cm

ProBasics K4 Wheelchair Measurement Guide

Sizing Verification & Clearance Blueprint ProBasics K4 Transformer Wheelchair Detailed Dimensions Diagram

24" Self-Propel Mode Dimensions Seat: 16" - 20" | Open Width: 25.0" - 27.0"
Length: 42.0" - 43.0" | Propel Weight: 31.8 lbs - 32.4 lbs
Capacity: 250.00 lbs (113.40 kg)

8" Transport Mode Dimensions Seat: 16" - 20" | Open Width: 18.0" - 20.0"
Length: 35.0" - 36.0" | Transport Weight: 21.6 lbs - 22.4 lbs
Capacity: 250.00 lbs (113.40 kg)

Clearance Blueprint Notice: Verify door frame paths and indoor home layout clearances before configuration changes. This highly versatile compatibility schematic maps the exact convertible spacing transitions between standard manual wheel self-propulsion and compact travel transport orientation.

Compact Folded Storage Footprint: Back folds down cleanly with easy-release paddle triggers to a condensed profile of 10.00 in (25.40 cm) to 12.00 in (30.48 cm), enabling convenient stowage inside standard car trunks, travel bays, or closets.

ProBasics K4 Lightweight Wheelchair Accessories

Poli Foam Seat Cushion

+$40.00

Premium fire-retardant medium density foam wrap with soft poly/cotton blend cover.

Dual-Chamber Gel Cushion

+$48.00

Antimicrobial, heat-dissipating gel-pod structure combined with dual-density foam.

Reflective Travel Tote Bag

+$19.99

Multi-pocket canvas bag with secure Velcro straps and high-visibility reflective lining.

Liquid Caddy Drink Holder

+$39.00

Adjustable, fully gimbaled self-leveling mount to prevent spilling while on the move.

Heavy-Duty Safety Seat Belt

+$24.00

Universal buckle lock belt, accommodating up to 48 in (121.9 cm) waistlines.

Elevating Leg Rests (Pair)

+$69.00

Fully adjustable tool-free elevating leg supports paired with padded calf panels.

ProBasics K4 Transport Chair Combo Downloads

Catalog Page (PDF)

ProBasics K4 Foldable Mobility Chair Reviews

"Absolute game-changer!"

"Absolute game-changer! Being able to pop the 24\" wheels off without tools and load this directly into my compact trunk is amazing. It's incredibly light but feels very stable. The woven nylon upholstery is quite easy to wash as well."

— Sarah T. June 12, 2025

"Dual configurations are perfect."

"Dual configurations are perfect. I use it as a manual wheelchair around the house to keep active, and my wife transforms it into a transport chair when we go out for doctor appointments. Durable, great engineering, and beautiful finish."

— Robert M. September 24, 2025

"Table access is incredibly easy."

"The padded flip-back armrests make transitioning to a dining table incredibly easy. Extremely comfortable nylon fabric and the seat cushion we added fits perfectly. No complaints whatsoever."

— Eleanor G. November 03, 2025

"Very versatile and rugged."

"Very versatile and rugged. The quick-release wheels work exactly as advertised. Only minor complaint is the box it arrived in was quite heavy, but the chair itself is extremely light once unboxed and set up!"

— James L. January 18, 2026

No Buyers info available

Lifetime limited

warranty

The frame of your Drive Medical product is warranted to be free of defects in material and workmanship for the lifetime of the original consumer purchaser. The brake handle and housing are covered for a period of 5 years of the original consumer purchaser.

This device was built to exacting standards and carefully inspected prior to shipment. This Lifetime Limited Warranty is an expression of our confidence in the materials and workmanship of our products and our assurance to the consumer of years of dependable service.

This warranty does not cover device failure due to owner misuse or negligence, or normal wear and tear. The warranty does not extend to non-durable components, such as rubber accessories, casters, and grips, which are subject to normal wear and need periodic replacement.

If you have a question about your Drive device or this warranty, please contact an authorized Drive dealer.

Warning: The items and packaging in this shipment contain chemicals known to the state of California to cause cancer, birth defects or other reproductive harm.

*This product meets or exceeds all federal safety and environmental regulations.

drive

Drive is a trademark of Medical Depot, Inc.

Port Washington N.Y. 11050 USA Made in Taiwan

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