Front view of Octane Sub4 manual wheelchair
Side view of Octabe Sub 4 with Silver Frame
Angled front view of Octane wheelchair with Silver frame
Close up of black Octane Sub 4 backrest upholstery
Side view of RGK Octane with angled push rims.
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RGK Octane Sub4

The RGK Octane Sub4 is the lightest wheelchair in RGK’s titanium lineup—crafted for individuals who demand performance without compromise. Precision-engineered from aerospace-grade titanium, the Octane Sub4 is not just lightweight; it’s responsive, rigid, and designed to enhance everyday mobility.

If you’re looking for an ultralight custom wheelchair with flawless style, strength, and responsiveness, the Octane Sub4 is in a league of its own. This is more than just a chair—it’s an extension of your body.

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Sub4 Titanium Frame
Handcrafted and made-to-measure, the Grade 9 titanium frame delivers exceptional strength-to-weight ratio, intrinsic shock absorption, and uncompromised durability—making it ideal for both urban navigation and rougher terrain
Guaranteed sub‑4 kg frame weight (excluding wheels/cushion)
Airtech Sub4 breathable mesh upholstery with low-profile titanium buckles and kevlar-reinforced wings
Carbon-fibre sideguards and footplate plus optimized biomechanical geometry and low-profile cross braces
Description

Pushed to perfection, the RGK Octane Sub4 is individually crafted through a precision process that takes over 30 user measurements to deliver a wheelchair that fits like an extension of the body—enhancing balance, posture, and propulsion efficiency.

The use of Grade 9 titanium gives the chair a natural shock-absorbing capacity and remarkable resistance to corrosion—even from saltwater—best suited to beach environments or frequent outdoor use. Despite its minimal weight, the frame remains rigid and compact, supporting up to 110 kg user capacity with reliable strength.

Ride quality is enhanced by airtech Sub4 upholstery—a breathable mesh system that wicks heat and adapts to body shape. User comfort is further supported by kevlar-reinforced wings and refined biomechanics like optimized camber, axle setup, and single- or dual-tube frame design.

With carefully designed low-profile castor arms, cross braces, and titanium fasteners, the Octane Sub4 combines advanced engineering and aesthetic refinement. Optional carbon-fibre components deliver further strength without added weight, while over 19 build-quality checks ensure every chair meets RGK’s exacting standards.

Key Features

  • Under 4kg guaranteed

  •  Aerospace-grade titanium frame

  •  Rigid, responsive handling

  • Fully bespoke with your exact specifications

  • Foldable backrest with sideguards

  • Ultra-light carbon fibre options available

  • Minimalist frame for maximum propulsion efficiency

Specifications
Specification
Width

SW + 24cm
Seat Width

Made-to-order
Seat Depth

Made-to-order
Front Seat Height

Made-to-order
Rear Seat Height

Made-to-order
Seat Angle

Made-to-order
Backrest Height

Made-to-order
Backrest Angle

Made-to-order
Frame Angle

Made-to-order
Camber

1°/2°/3°
Max User Weight

110kg
Total Weight

6kg
Dismantled Weight

3.5kg
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