Tiga Sub4

Tiga Sub4


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The lightest bespoke wheelchair. Less than 4 kg – guaranteed!

Made from aerospace grade aluminum, the RGK Tiga Sub4 ultra-lightweight rigid wheelchair has been engineered with love, passion and sheer determination to provide the lightest made to measure wheelchair, with no compromises. We believe every gram makes a difference and every component down to washers and screws have been optimized to provide you with a guaranteed* sub 4 kg made to measure rigid wheelchair frame – welcome to the Sub4.

*Excluding wheels and cushion

Seat Width

250 – 440 mm

Seat Depth

250 – 440 mm

Front seat height

380 – 520 mm

Rear seat height

360 – 500 mm

Back height

100 – 400 mm

Total Width

Max. 680 mm (SW + 240 mm)

Seat Angle


Backrest Angle


Frame Angle



1° / 2° / 3°

Max. User Weight

110 kg

Product Weight

From 6,2 kg (Dismantled from 3.6 kg)

Upholstery Colours


Frame Colours

23 frame colours plus 5 anodiced accent colours

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Sub 4 kg – Guaranteed, no hidden extras…

Your made-to-measure Tiga Sub4 wheelchair frame is guaranteed to be under 4 kg, we’ll even write the exact weight on your certified frame. This includes all standard components such as; compact wheel locks, carbon fibre side guards with fender, castors, carbon fibre footrest cover and upholstery. The rear wheels and cushion are not included as these are easily removed for transportation.

The lighter the wheelchair, the less energy you need to push – it’s that simple.

We understand that a small weight saving can make getting in and out of the car that little bit easier, so imagine what a massive weight saving can do for you! The Sub4 glides effortlessly due to the lightweight and rigid frame, but don’t think we’ve compromised on quality. The Sub4 boasts all the same reliability features as the TIGA, and with the frame being very similar in design and materials, you can be sure the Sub4 isn’t just super light, but it’s super strong too!

Made to measure for an efficient drive.

The stiff, robust made-to-measure frame and footrest is hand built and designed to your individual requirements. Every tube has been reviewed and analysed to ensure any excess weight is removed and the reliability that you’ve come to expect from an RGK wheelchair is maintained. The same has been done for the parts too. The castor wheelchair, sideguards, brakes and fasters have also been reviewed and analysed to remove any excess weight – without compromising function. So the standard ‘on the road’ specification includes all you need to achieve that under 4 kg weight … with no hidden extras.

Weight Saving Upholstery

The weight saving improvements made to the TIGA Sub4 upholstry include a new mesh strap seat sling and backrest which are both adjustasble and fitted with low-profile titanium buckles. For added comfort the backrest comes also comes with an optimized air-tech centre pad.

Cobalt Blue Anodised frame Now Available

The cobalt blue anodised frame uses a unique anodising process which increases the thickness of the natural oxide layer on the surface of metal parts, to protect against corrosion and general wear. The bright cobalt blue finish quality is unmistakable and provides a vivid and colourful frame with no added weight, perfect on a Tiga Sub4.