RGK Tiga Sub 4 Wheelchair

RGK Tiga Sub 4 Wheelchair is RGK's lightest chair yet and guaranteed to be under 4kg! Made from aerospace grade aluminium, the sub4 has been engineered with passion and determination to ensure it is the lightest made wheelchair. Perfect for transferring in and out of your car. This made to measure wheelchair is guaranteed to be under 4kg with every component optimised - 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, Froglegs 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 as simple as that.

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 have 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! The Tiga Sub4 Made to Measure Frame features 19 design changes from the standard Tiga frame to achieve an example weight of 1.73kg. The made to measure frame compromises of the aluminium hand built frame which is designed to your individual requirements and the footrest, excluding the plate. Each tube has been reviewed and analysed to ensure any excess weight is removed and the reliability is maintained.

Key features

Made to measure frame 1.73kg
Aerospace grade 7 aluminium
Optimised hollow forged castor arm
Fixed centre of gravity
Fixed backrest
Low profile cross braces
Optimised single tube design
Optimised axle and pin set up with Titanium sleeves
Polished or brushed
Lightweight sideguard/brake mounting system
Max user weight 110kg

Standard components

compact wheel locks,
carbon fibre side guards with fender,
Froglegs castors
carbon fibre footrest cover and upholstery.
The rear wheels and, cushion are not included.
Upholstery
Made up of a seat sling and a backrest and connects you to the frame.
Mesh strap
Adjustable seat upholstery
Low profile titanium buckles

Tiga Sub4 Components

37 design changes to achieve an example weight of 1.2 kg. These parts turn a unique frame into a practical piece of equipment, which consist of castor wheels, sideguards, brakes and fasteners. Each component has been reviewed and analysed to remove any excess weight and to maintain the required function. The standard ‘on the road’ specification includes all you need with no hidden extras.

Component key features

Lightweight Carbon fibre sideguards with fender
Lightweight Carbon fibre footplate with weight saving hole
Titanium fasteners used throughout
Compact brakes with lightweight mounting system
Super light Froglegs castors, 4” x 1.25” with aluminium centre
Sports bearing housing with plastic top bearing
New stem bolt complete with integrated washer
A7075 castor axle with Titanium strengthening bolts and plastic spacers
Lightweight nylon footrest mount with ‘Easy Adjustment System’

Sub4 Upholstery

16 design changes to achieve an example weight of 0.8 kg. Last, but certainly not least, the upholstery is made up of a seat sling and a backrest and connects you to the frame in order to deliver a life changing product. The importance of the upholstery is second to none and each area has been reviewed to remove excess weight and maintain the function and versatility.

Upholstery key features

New mesh strap adjustable seat upholstery, including low profile titanium buckles
Optimised air tech strap adjustable backrest and centre pad, including mesh cover panel and low profile titanium buckles