Invacare Aviva RX20

The Aviva RX20 is an affordable version of Invacare's flagship RX40 powerchair. With the same compact base and advanced suspension, it offers a good blend of comfort and precision manoeuvrability. A choice of seating systems are available, including the configurable Modulite seating.

Product Description

The Aviva RX40 has broken new ground as a high-performance rear-wheel drive powerchair that has an outstandingly compact 56 cm base that makes it ultra-manoeuvrable. The RX20 is essentially a lower cost version of the RX40 with some more basic features and options on it.

Power base

The RX20 features the same patented CTC suspension as the RX40, giving a smooth rider even over challenging terrain such as cobblestones. This is adjustable to your ride preference, whether that be for a softer, spongier feel, or a sporty harder ride.

While the RX40 has 60 Ah batteries as standard, plus the option to upgrade to 73.5 Ah batteries for an outstanding range, the RX20 has 52 Ah batteries, meaning it doesn't do quite the same distance. It is also restricted to 4 mph, so cannot be used on roads. The smaller, solid castor wheels also slightly restrict performance.

Despite this, it must be emphasised that the RX20 remains a good performer outdoors if speed is not your priority, being comfortable and capable.


There are two seating systems available for the RX20 - the first being the "Standard seat" (first picture) which features limited adjustability but comes in at a lower price - this is ideal for those without any advanced seating requirements, and who won't be using their powerchair throughout the day.

The Modulite seat is a much more advanced seating system, fully prescriptive with a wide range of options to ensure a perfect fit, and able to be adapted to changing needs. This includes powered seating functions, although notably you cannot get a seat riser on the RX20.


The innovative LiNX control system features on the RX20 - simple to use, yet packed with impressive features. This includes the option for a colour touchscreen joystick on the Modulite seat version - a popular upgrade.

There is no option for a G-Trac gyro upgrade on the RX20; however with the slower 4 mph top speed, this is not generally an issue.


The RX20 is just as stylish as the RX40 - in fact it is hard to see the difference between them at first glance. It has a few less shroud colours available as standard, but there is still the option for custom colours if desired.

Our Verdict

While the RX20 isn't as richly-featured as the RX40, it is still an impressive chair. It is extremely comfortable - both from the seating and suspension - and highly compact; the ideal choice for those after a stylish chair with good manoeuvrability indoors and for pavement use outside.

If you are after top level outdoor performance, then we would have to recommend the RX40 instead. Otherwise, the other models to consider this against are Quickie's Q100 R and Q200 R, and Quantum's slightly more basic Aspen.

Key Features

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    Affordable RX model
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    Ultra-compact 56 cm base
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    Choice of seating systems
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    Modern styling

Our Service

We offer a range of solutions for getting the powered wheelchair of your choice, including purchase, long-term hire agreements of one or three years, and the option to lease through the Motability scheme.

We passionately believe we provide a level of service above and beyond other retailers that gives you real value for money. Our in-house experts can provide you with impartial advice on the right wheelchair for you, and none of our staff are on commission.

All aftercare is carried out by our experienced specialists, with a fleet of mobile engineers, and a fully stocked workshop at our HQ - we don't get a third-party company to carry out our work. In the event your powerchair needs to come back to us for repair, we will provide you with a loan powered wheelchair from our extensive fleet to keep you mobile. We maintain a fleet of high-end prescriptive powered wheelchairs so that your loan product will be as similar as possible to your wheelchair.

Try This Powered Wheelchair

Our Chessington Showroom is stocked with a wide range of wheelchairs for you to try out and compare, and our product specialists are on hand to answer all your questions, and carry out a full assessment. Visiting our Showroom allows you to see the widest possible range of powerchairs before making your decision on which powered wheelchair to buy.

We are also able to carry out home assessments and demonstrations - please call us to book one in. A home consultation comes with the benefit of trying out an electric wheelchair around the environment in which you will be using it.

Product Specification

Speed4mph / 6.44km/h
Battery Size52 Ah
Crash TestedYes
FunctionalityElevating Leg Rests, Tilt In Space, Recline
Indoor OutdoorIndoor & Outdoors
Made To MeasureMade to Measure
Max Range18miles / 28.97km
Powerchair TypePrescriptive Powerchair
Max Seat Depth51cm / 20.08in
Max Seat Width58cm / 22.83in
Min Seat Depth41cm / 16.14in
Min Seat Width33cm / 12.99in
Max Seat Height48.5cm / 19.09in
Min Seat Height43.5cm / 17.13in
Weight Capacity136kg / 21st 6lb
Min Overall Width56cm / 22.05in
Min Overall Length102.6cm / 40.39in
Min Overall Weight105kg / 16st 7lb


Prescriptive powerchairs such as this are built to order following an assessment with one of our Prescriptive Assessors. They are available with a wide range of customisation options, including powered seating functions, cushions and backrests, and drive performance upgrades, and these can affect the price - our Prescriptive Assessors will run through all the options at your assessment. As a general guideline, opting for multiple powered seating functions can add significantly to the cost of the wheelchair; however it is possible to get a fully functioning and desirable chair at the base price!

People purchasing powered wheelchairs will often qualify for zero-rated VAT. If the person using the wheelchair has a permanent disability, terminal illness or chronic sickness then they will be eligible for 0% VAT. Our Prescriptive Assessors will be able to answer any questions you may have about VAT.

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