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Manual Wheelchairs

Rigid Ultra Lightweight

A-4 Ultra Lightweight Wheelchair

A-4 Ultra Lightweight Wheelchair
Item #: 4523 | InvacareSKU: TA4

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Quick Overview

Curved rear frame is more compact, easier to transport, and sporty looking
Infinite adjustment of center-of-gravity along the frame

CAD $1,893.00
Sugg. Retail: $4,729.00

Shipping: FREE /Built to Order
Ships in1-2 weeks

Ships from the USA

Description

Whether this is your first chair or not, the A4 Ultra Lightweight Wheelchair can be set up very stable or easily adjusted for maximum performance. The new super lightweight titanium frame is more compact and easier to transport, while the curved rear frame is sporty looking. The camber tube clamp assembly allows you to fine-tune the center-of-gravity in an infinite number of settings. Plus, with rear seat-to-floor height adjustments in 1/2" increments and an adjustable-angle fold-down back, you can set your optimum position to ride in style. And it comes with Invacare's patented camber technology, so you can change the camber in seconds. About the only thing we didn't change is the legendary performance. It comes standard with every new A4. Imagine that-the adjustability you need and the performance you want. You wouldn't have it any other way.

Features

Curved rear frame is more compact
Adjustable rear seat-to-floor height
Simple, infinite adjustment of center-of-gravity along the frame
Improved adjustable-angle fold-down back
Full suspension option

Included

Free Shipping
FixedTubular Footrest

Specifications

Product Weight:	24.5 lbs.
Product Weight Capacity:	300 lbs.

Seat Width:	12" - 22"
Seat Depth:	14" - 22"
Seat-To-Floor Height:	Front: 17" - 21" (17" Not available with Suspension option) Rear: 14.5" - 20"
Back Type:	Standard Height Adjustable

Armrests:	Padded Swingaway, Height Adjustable Desk and Full lengths (all are removable).
Caster Options:	3", 4", 5", 6"
Rear Wheel Options:	22", 24", 26"

Overall Width:	18.75" - 36.5"
Shipping Dimensions (box 1):	31"w/24"h/24"d

Warranty:	Lifetime on frame
Medicare HCPCS Code	K0005

A-4 Ultra Lightweight Wheelchair

	4523

Frame Type

Seat Width

It's important for the wheelchair to be fitted properly and be as narrow as possible while maintaining comfort and safety. This will insure the best performance for navigating tight areas both inside the home as well out in public spaces.

A wheelchair that is too narrow or too wide can cause discomfort. When too narrow, a wheelchair can become restrictive and increase the likelihood of pressure sores, while when it's too wide, becomes more difficult to push due to the angle of the arms from the shoulders to the wheels.

To determine the necessary seat width, measure the rider's widest area of the body and add one inch. This will allow for optimum seat width while maintaining ideal usability, comfort and safety.

Seat Depth

Front Seat Height

Front seat height is measured from the front of the seat to the floor.

To determine the appropriate seat height, measure from the bend of the knee to the bottom of the foot. Subtract the height of the seat cushion if one is being used. If the wheelchair is not being self propelled by the feet, also add about 2 inches to allow for foot clearance.

Seat Height

Seat height also known as seat-to-floor height is measured from the front of the seat to the floor.

Make sure you'll be positioned correctly in your wheelchair and can sit at your desk or kitchen table. Standard tables/counters have a knee clearance of 27 inches.

Front Frame

Back Height

Frame Finish

Armrests

Armrests are mostly a matter of personal choice, but most often users without much mobility appreciate armrests to help alleviate shoulder and back stress. Armrests also provide additional stability for users with limited upper body balance and are helpful when navigating in and out of the wheelchair. Additionally, armrests allow users the ability to do pushups, helping relieve pressure as well as protecting clothing from the wheels.

When armrests are not fitted properly the wheelchair can become more difficult to push. Not all armrests are adjustable. Height should be fitted to allow the forearm to rest fully on the armrest without pushing up on the shoulders. For users who sit at a table or desk, swing-away armrest can beneficial.

There are four basic types of armrests:
1. Full length, fixed height (entire armrest is padded with a non-adjustable height)

2. Full length, adjustable height (entire armrest is padded with various height seetings)

3. Desk length, fixed height (partial armrest is padded for easier access with tables, non-adjustable height)

4. Desk length, adjustable height (partial armrest is padded for easier access with tables, various height seetings)

Armrest that can be easily removed or flip up and down gives users the choice of when to use the armrests.

Armrest Size

Handles

Front Riggings

Wheels

It's important for the correct wheel size to be used to insure maximum long-term comfort and ease of use. Wheel size affects your height from the floor and the relationship of your arms to the wheel rims for pushing.

There are two types of rear wheels, Spoked Wheels and "molded" Mag Wheels.

1. Spoked Wheels are made of metal and are similar in appearance to that of bicycle wheels. The number and size of the spokes affect durability, shock absorption, weight, and performance. The more spokes, the more stable the wheel will be.

2. Mag Wheels are made of molded plastic or a composite. They have a small number of wide molded spokes that are an integral part of the wheel. Mag wheels are more durable, require less maintenance, and usually weigh more then spoked wheels.

Tires

Rear wheels are critical to the performance of a wheelchair.

There are typically three types of tires:

1. Pneumatic (air-filled) tires provide a softer ride, but need to be kept inflated. Because pneumatic tires are softer than urethane tires, they are harder to push, with more resistance to the shoulders.

2. Pneumatic Flat Free (foam-filled) tires provide a stiffer ride compared to air-filled tires, and will never go flat.

3. Urethane (solid, flat-free) tires provide the quickest and stiffest ride. And they will not go flat.

Tire Tread also affects the wheelchair ride. Tires with very little tread offer a quicker ride and turn more easily because there is less rubber in contact with the ground, causing less friction. "Knobby" tires with deep treads are helpful on unpaved and rougher surfaces, yet offer less maneuverability. A 1 3/8" treaded tire is a good basic tread for everyday use.

Casters

Easy to overlook, casters are critical to the performance of a wheelchair.

Casters are the small front wheels of the wheelchair. They allow the wheelchair to steer and turn in any direction by rotating on its vertical axle.

Casters typically come in sizes from 3" to 8". The smaller the caster the better the maneuverability of the chair and the less likely it is to shimmy. But smaller casters on unpaved surfaces, riding in and out of elevators, or passing over street grates can be more problematic. Smaller casters are typical of chairs used for sports like basketball, which is played on an even, hard surface, yet their maneuverability makes them popular for everyday use. 3" casters require the most riding skill and may not be the best choice for a first time wheelchair user.

The large 8", pneumatic (air-filled) caster provides the softest ride and easily rolls over bumps and raised surface, yet makes propelling the chair more difficult. Because of their size, 8" casters can be an obstruction coming into contact with furniture or the rider's foot. Pneumatic tires need to be kept inflated with the correct pressure, and are capable of going flat.

4" to 6" casters offer a good combination of maneuverability, performance and ease of riding over surface obstructions. Composite (airless) casters offer better durability and quicker ride, while pneumatic casters provide a softer, slower experience.

Camber Angle

Camber Angle is the off-vertical tilt of the rear wheels. It is adjusted to control maneuverability, speed and stability.

The greater the camber angle, the further the distance between the bottom of the rear wheels and the closer the distance between the top of the wheels. Increasing the camber angle provides the rider with increased maneuverability and stability, but also increases the overall width of the wheelchair.

Typically 0-3 degrees of camber is considered standard for everyday use to accommodate narrow doorways and aisles. A higher camber angle is useful for sporting activities such as basketball where added stability and maneuverability is desired.

Handrims

Wheel Locks

Wheel locks also known as brakes are used to keep the wheelchair in a stationary position, for example while traveling on public transportation and for safe transfers in and out of the chair. Using wheel locks as a braking device can cause injury and excessive tire wear and should never be used in this manner.

There are various types of wheel locks available:

1. Push-to-lock wheel locks are the most common. The break is engaged by the rider pushing forward and applying pressure with the palm of their hand until the lever snaps into position.

2. Pull-to-lock wheel locks work in the same manner as the push-to-pock except the lever is pulled forward. For some riders, it may be easier because it does not require as much upper body mobility needed to push the lever away from the body.

3. Swing-away, low-mount and under-mount wheel locks work in different ways depending on the style. These wheel locks help you avoid hitting your thumbs when pushing directly on the tires by mounting the wheel locks away from this range of motion. Due to its location, some riders with limited mobility may not be able to engage these wheel locks.

Wheel lock extensions provide a greater lever arm to apply and remove the locking mechanism, making the wheel locks easier to engage for a rider with decreased upper strength.

Gloves

Wheelchair Accessories

Wheelchair Cushion

Bags

Ramps

Case Logic Catch-All Organizer Bag for Wheelchairs

This bag from Case Logic fits most manual wheelchairs and keeps all of your essentials close by.

Multiple hook and look attachments allow you to attach the catch-all to any tubing on your wheelchair. Attach it to your chair's armrest, push handles, top of footrests or anywhere convenient. Perfect for cell phones, eye glasses, pens and more.

For a limited time, 1800wheelchair.com is offering this bag absolutely free with the purchase of any Invacare wheelchair.

Tempur-Pedic ViscoRide Wheelchair Cushion

The ViscoRide Wheelchair Cushion by Tempur-Pedic™ is the first truly affordable viscoelastic cushion for pressure wound prevention. Designed for the sensate, geriatric, or CVA rehab patient, the ViscoRide Wheelchair Cushion increases comfort while it provides exceptional pressure management.

Ulti-Mate Wheelchair Cushion

The Ulti-Mate cushion is a lightweight and maintenance-free pressure-reduction cushion created from two layers of molded visco-elastic foam and a polyurethane foam bottom layer. The Ulti-Mate cushion provides superior weight distribution and pressure reduction, while optimizing overall positioning and support.

Threshold Ramp 9.5in. L x 32in. W (1.75in. - 2.25in. rise)

For scooters and wheelchairs. The Threshold Ramp is a lightweight yet durable modular ramp designed for doorways, sliding glass doors, and raised landings. Threshold ramps may be used either one by itself or two combined to make entry and/or exit convenient and safe. Simply measure the height of the door entry and choose the correct size.

Constructed of extruded, anodized aluminum that will not rust or corrode. Features a durable non-skid driving surface. Easy installation.

Note: Please refer to your equipment's User Guide for exact recommendations concerning acceptable usage and incline/decline.

EZ-Access Suitcase Advantage Series Wheelchair Ramp

The Suitcase Advantage Series ramp, with its single fold design, offers a simple and convenient solution for wheelchairs and scooters to access steps, vehicles, and raised landings with ease. This ultrastrong ramp provides the safety and strength required while remaining light and portable. The ramp can be separated, making it even easier to use, carry, and store. By simply removing two hinge pins, the Suitcase Advantage Series ramp quickly separates into two lightweight sections, each with their own carrying handle. Ramp features high-quality skid-resistant tape with yellow safety strips and a selfadjusting bottom transition plate for easy conversion from ramp to ground. Unfolds to a 29” wide platform. Manufactured of welded aircraft-grade aluminum. Features an 800 pound weight capacity and three-year limited warranty.

EZ-ON self adjusting bottom transition plate which allows smoother ground to ramp transfer and provides greater flexibility at various ramp angles. The Advantage Series Suitcase ramp can be (optionally) separated into two lightweight sections, making set-up, storage, and transportation easier. By simply removing two pins, the ramp can be carried and set up one half at a time, reducing lifting weight by 50%. EZ-Hold Oversized Handles (one on each ramp section) are made of formed aluminum and feature comfort wrap for a secure and comfortable grip. If ramp is carried as one component, the handles nest together and form one unit.

Note: Please refer to your equipment's User Guide for exact recommendations concerning acceptable usage and incline/decline.

5 Foot Suitcase Ramp

The Suitcase Ramp is a single-fold ramp for scooters and all wheelchair types. It folds in half and features a carrying handle for easy transport. Made of aluminum with a non-skid surface, the Suitcase Ramp is designed to bridge the gap over steps, curbs, and raised landings. The 5' & 6' ramp may be used with most minivans.

Note: Please refer to your equipment's User Guide for exact recommendations concerning acceptable usage and incline/decline.

Silvert's Unisex Lined Wheelchair Poncho

Silvert's exclusive Wheelchair Cape is adaptive clothing at its best. It provides winter warmth and comfort to anyone who uses a wheelchair. The shorter back stays clear of the wheels and the attached hood keeps out the rain. A convenient front zipper makes donning the cape easy. Composed of durable water repellent polyester-cotton with plush pile lining for warmth, the cape is terrific for elderly/seniors who are disabled. Machine washable. One size.

All-Purpose Padded Mesh Wheelchair Gloves

Half-finger design with foam-padded grain leather palms and cotton mesh backs give breathable comfort (50% leather, 40% cotton, 10% foam). Velcro® brand hook & loop closures. Machine wash/line dry. 90-day warranty. Available in black and tan. Sizes XX-Small to X-Large (glove sizes 6-12). Sold in pairs. Latex free.

To measure for gloves:

Measure with a tailors tape around hand with the palm flat, around knuckles, excluding the thumb. Apply the measurements to these conversions: 6”= xx-small, 7”= x-small, 8”= small, 9”= medium, 10”= large, 11”= x-large. For in between sizes, use the next size up (i.e. 9 ½ = 10)

Impacto Leather-Palm Fingerless Gloves

Fingerless nylon Lycra glove with black suede leather and impact absorbing padding in the palm. Sold in pairs. Latex free.

Biosoft Palm Guard Anti-Vibration Gloves

Ideal for work-hardening programs or as wheelchair gloves. Elastomer absorbs shock, vibration and pressure. Cool and comfortable, with open-weave knit on back. Slips on easily with adjustable Velcro® closure. Latex free. Sold in pairs.

ROHO AirLite Cushion

By combining a contoured, anatomical-shaped foam with a pre-set, sealed Air Flotation component, the AirLITE® enables users to sit comfortably for an extended time. AirLITE's technology and design provides the comfort you want and the support you need.

Most foam cushions will compress over time, though the AirLITE cushion's pre-set, sealed Air Flotation component provides comfort and peace of mind you can count on long after other “just foam” cushions have lost their effectiveness.

The contoured shape of the AirLITE cushion provides users with support for basic positioning needs. Leg (femur) troughs and an ischial well provide support for lower extremity control, stability and comfort.

With the pre-set Air Flotation component, just put the AirLITE cushion in the wheelchair and comfort, enhanced alignment and durability are achieved. No adjustment necessary.

The AirLITE cushion weighs only 2 lbs.. Compare this to alternative technologies at two to four times the weight of the AirLITE. A lightweight cushion makes a mobility system easier to propel and transport.

Back Cushion with Lumbar Support

This new General Use Back Cushion with Lumbar Support from Drive Medical is a great way to improve your seating posture while providing back support and comfort.

The cushion's unique shape comforms to provide support to the lumbar region and a stabilization board prevents the foam core from hammocking in sling-back wheelchairs.

A sealed inner liner protects the cushion's core from moisture and accidents. Additionally, the cushion has a non-slip vinyl back which prevents the support from moving around behind the user.

Roho LTV Cushion

You’ll Love that Valve! The secret to the extraordinary comfort of this cushion is the valve. It lets you customize the seat to your specific comfort level. ROHO Shape Fitting Technology makes the difference. The LTV® Seat Cushion is made of individual, interconnected air cells that allow air to slowly transfer from chamber to chamber and evenly distribute body weight pressure. Weighing only one (1) pound, the LTV Seat Cushion is lightweight and easy to fold. It can easily be transported from your scooter, to the car or wherever you may need a cushion for use outside of a wheelchair.

Drive Molded Foam Cushion

A unique construction of high resilient molded foam allows for maximum stabilization, positioning and pressure relief in this great new cushion from Drive Medical.

The foam is molded to fit the lower body and encourages correct posture. Included is a stretch polyester knit cover that is removable, washable and flame retardant with a non-slip bottom for comfort and safety.

Nylon Wheelchair Tote Bag

One of our most popular bags. This bag is sewn from heavycoated nylon. The large inside pocket and two smaller outside pockets have two-way zippers with easy-to-open rings.

Reflective Mobility Tote Bag

This tote bag from See and Be Safe™ easily attaches to your walker or the armrest of your wheelchair, scooter or powerchair and makes motorists aware of your presence with 3M ScotchLite™ reflective material.

The tote attaches with velcro straps and features many pockets including a pop-up cell phone pocket and a zippered mesh front pocket.

Drive Single Fold Ramp

The Drive single fold ramp is durable, lightweight and features a carry bag for easy transportation and storage. The ramp has perforated slots to keep water from collecting on the ramp, and the variety of sizes meet any elevation change.

PVI Solid Ramp

The Solid ramp is an excellent choice when a more permanent ramp is desired. No assembly required. Its one-piece design makes it ideal for wheelchairs and scooters with three or four wheels. This ramp is constructed of aluminum and has a slip resistant surface. The PVI solid ramp is available in three lengths and two widths. Custom widths are also available.

PVI Threshold Ramp

The PVI Threshold Ramp is a premier wheelchair or scooter ramp that is very easy to install. This threshold ramp is lightweight yet it can support up to 600 pounds on 2 axles. There are holes poked in the top corners of the ramp for easy installation. Lightweight aluminum construction means this threshold ramp is built to last. It is designed to fit most doorways and equipped with a high traction surface for improved safety and smooth riding.

Roho Posturelite Cushion

PostureLITE™ Cushion by ROHO® is a new self-adjusting wheelchair cushion that combines unparalleled ease of use with comfortable skin protection. It is ideal for anyone who may be at risk of skin breakdown and may have normal sensation. PostureLITE features a “closed system” design that utilizes both foam and air to provide fail-safe support which never needs adjustment.

The preset air and foam cushion offers a perimeter air expansion chamber that conforms to the contours of the body to help provide comfortable suspension and skin protection. Similar to ROHO cushions, PostureLITE works by allowing continuous redistribution of air within the cushion with every weight shift. This maximizes the contact area of the cushion to help manage pressure and increase tissue viability.

Standard

Suspension Option Front & Rear

12"

13"

14"

15"

16"

17"

18"

19"

20"

21"

22"

14"

15"

17"

16"

18"

19"

20"

22"

17"

18"

19"

20"

21"

15.5"

16"

16.5"

17"

17.5"

18"

Tapered Front End

"V" Front End

Adjustable 14" - 18" (standard)

Adjustable 10" - 14"

Adjustable 12" - 16"

Adjustable 16" - 20"

Wet Black

Silver Vein

Silver Metallic

Midnight Blue

Black Prism

Sunny Yellow

Sunkissed Orange

Tangerine Red

Electric Red

Fruit Fusion

Bubblegum Pink

Grape Madness

Emerald Green

Grasshopper Green

Electric Blue

Omit Armrests

Swingaway Padded Arm

T-Arms, Full, Adjustable Height (6" - 10")

T-Arms, Desk, Adjustable Height (6" - 10")

T-Arms, Full, Adjustable Height (8" - 14")

T-Arms, Desk, Adjustable Height (8" - 14")

Low Range Height (6" - 10")

Hight Range Height (8" - 14")

No Push Handles

With Push Handles

1 Piece Tubular Footplate

Adjustable Angle One Piece Footboard

24" Composite (standard)

24" Spoke

22" Composite

22" Spoke

26" Spoke

Pneaumatic

Urethane - Treaded

Primo

Pneaumatic - Flat Free

3" Roller Blades

4" Semi-Pneumatic

5" Semi-Pneumatic

5" Composite Urethane

5" Aluminum Urethane

6" Compostie Urethane

0°

3°

6°

9°

Aluminum Anodized Handrims

Black Plastic Coated Handrims

Plastic Coated w/8 Oblique Projections

Plastic Coated w/8 Vertical Projections

Plastic Coated w/812 Oblique Projections

Push To Lock

Pull To Lock

Hill Holder-Clamp on Locks

Omit Wheel Locks

All-Purpose Padded Mesh Wheelchair Gloves

Impacto Leather-Palm Fingerless Gloves

Biosoft Palm Guard Anti-Vibration Gloves

Wheel Lock Extension (8")

Auto Style Seat Belt

Rear Anti-Tipper

Silvert's Unisex Lined Wheelchair Poncho

ROHO AirLite Cushion

Back Cushion with Lumbar Support

Roho LTV Cushion

Drive Molded Foam Cushion

Roho Posturelite Cushion

Nylon Wheelchair Tote Bag

Reflective Mobility Tote Bag

Drive Single Fold Ramp

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Catalog Number: 55508892