RGK Octane Sub4 Lightweight wheelchair

the lightest titanium wheelchair

RGK Octane Sub4 Lightweight wheelchair

The titanium revival is upon us – and it is exceptionally light

4kg. That’s a newborn baby. A 7 week old Labrador puppy. Your Octane Sub4. The classic Octane design has been redefined, combining it with tried and tested Sub4 technology and a hand crafted made to measure titanium grade 9 frame. Titanium has this wonderful natural quality that absorbs shocks and soaks up road vibration, delivering a super-smooth and comfortable ride quality for you. Transferring, propelling, lifting, turning… All effortless with your Octane Sub4.

RGK Octane Sub4 Lightweight wheelchair

No corrosion
Titanium will not rust and is very resistant to corrosion and salt water.
Perfect for adventures out and about.

Smooth riding
The Octane Sub4 frame has natural in-built shock absorption to soak up road vibration, which means that it will deliver a super-smooth and comfortable ride quality like no other.

A titanium frame has a far greater ability to bend without breaking, elongating by up to 25% compared to around 15% for steel and 8% for aluminium.

Strength to weight ratio
Strong as steel but 45% lighter, titanium has the highest strength-to-weight ratio out of all the known metals.

Tim Farr

“Christmas has certainly come early. This is more of a work of art than a chair. It’s definitely the most beautiful chair I’ve ever owned. There’s a noticeable difference in weight even compared to my MaxLite – just having it as light as it is will make a huge difference; it will certainly save my shoulders over the years to come.
I think it’s important to have a good looking chair: a well-fitted chair is important in giving me confidence too. Even though I’ve only had it a day, a few people have already said that even though it’s thicker tubing than my previous chair, it is actually less noticeable!”

Chris Toon

“It's half the weight! As it's faster you actually feel more secure, getting up and down kerbs, it's just planted so well. It feels good to be in the chair... And I think it looks cool as well!"

Style, performance
...and still under 4 Kg

Alongside the smooth ride, beauty and lightness, the Octane Sub4’s material is out of this world. Strong as steel but 45% lighter, titanium has the highest strength-to-weight ratio out of all the known metals. A breeze to push, wherever you go, it’s built to be durable, so you have peace of mind knowing you can take it anywhere.

  • Made to measure
  • Less than 4kg guaranteed (excluding wheels and cushion)
  • Rigid and lightweight
  • Titanium Grade 9
  • Perfect toe in toe out for minimum drag
  • Optimised biomechanics for maximum power and efficiency
  • Optimised single tube design
  • Low profile cross braces
  • Max user weight 110kg
RGK Octane Sub4 Lightweight wheelchair

Engineered for lightness

The Octane Sub4 is a breeze to push wherever you go.
It’s built to be durable, so you have peace of mind knowing you can
take it anywhere.

RGK Octane Sub4 Lightweight wheelchair

What’s 'made to measure' all about?

Made to measure is key to getting a wheelchair that not only fits you in size, but also gives you the best balance, comfort and posture. Getting these right will allow for complete trust in your wheelchair.

Clinical seating

  • Reduce your risk of developing severe health problems and provide optimum comfort with a frame size that’s built to you.
  • Increase the wheelchairs efficiency, make the chair compact, manoeuvrable and practical, reduce the amount of energy required to propel… All done by just having the optimum castor position.


  • Ensure comfort, pelvic positioning and balance with our range of ergonomic backrests and seats.
  • Feel snug and grounded with tapered seats and frame
  • Taper seat frame design for complete support

Redesigned from the
ground up

Only the best materials are used in your Octane Sub4. Titanium is famous for having all of the positives of aluminium with the additional bonus of a natural shock absorption by the material itself. The utmost best performance of your chair is ensured by only using elements produced by market leaders, alongside a staggering 19 quality checks throughout the build, from measure to handover.

  • Sports bearing housing
  • New stem bolt complete with integrated washer
  • New low profile castor arm design
  • Low profile cross braces
  • Optimised axle and pin set up with Titanium sleeves
  • Compact wheel locks with lightweight mounting system
  • Lightweight Carbon fibre sideguards with fender and lightweight sideguard mounting system
  • Lightweight Carbon fibre footplate with weight saving hole
  • Titanium fasteners used throughout
  • Optimised single tube design
  • Many non-certified wheelchair options available

Airtech Sub4 Technology

Do you need help with funding your RGK chair?

There are a few different ways in which you can try to get funding for your wheelchair. These choices include NHS Wheelchair Services, Access to Work and charities. To learn more about who these services are, the eligibility criteria required and how you can apply for the scheme, please click below to access our funding page.

Find out More

Interested in your own Octane Sub4?

Enquire about the Rgk Octane Sub4 below now!

Whether you’d like a brochure, to arrange a demo and assessment, get rough pricing or you just have some general questions about wheelchairs, complete this form and your dedicated account manager will be in touch to help you.

Your account manager can talk you through the process of getting a new chair, help you to decide which of our extensive range of products is most suitable for your needs or can arrange to get one of our highly experienced mobility advisors to visit you at your home.