We offer a range of chassis to suit most budgets available from assembled frame and builder bracket kits for our Single Shock chassis and basic rolling to full turn key builds for our Ultra4 & IFS chassis.

Assassin Front.JPG

The all new “ASSASSIN” is an homage to our light weigh challenge buggy that had great success on the winch challenge circuit around a decade ago!

It’s lightweight but stout and spacious design allows a wide range of mild to wild drive train options.

From the ground up we have designed the Assassin specifically with the home builder in mind. Including being available for complete self-assembly with laser cut jig fixture included to allow easy shipping of the chassis and the home builder to assemble the chassis safely and accurately.


Solid Axle Jeep Interceptor / Offender

Front Engine - Chevy LS

Single Shock

Front & Rear Winch Mounts

32 Gallon Jaz Fuel Cell

4 Link Suspension

MSA Specification


Our single shock front engine chassis has some seriously cool new design upgrades  - improved passenger space and head height, improved chassis design, up-rated suspension mounts, upgraded material specs and not to mention improved look by increasing...


Spacious ergonomic design for both Driver & Co Pilot.

Fully CAD designed, CNC profiled chassis and laser cut throughout.

Competition proven design developed over a decade of Ultra4 style motorsport.

Ultra4 Specification  (NOT MSA)

Superior driver visibility

Designed and manufactured in the UK

Versatile design suited to a wide range of off-road motorsports and trail driving.

Available in both Jeep and Defender body styles with rear fender options.

Independent Front Suspension

Single Seater

32 US Gal. Custom Fuel Cell

Mid Engine LS 

Coil-over & bypass shocks

4-link suspension with Trialing Arms

IFS 2 Seat.jpg

Independent Front Suspension

2 Seater

32 US Gal. Custom Fuel Cell Rear & Front Cell 

Mid Engine LS 

Coil-over & bypass shocks

4-link suspension with Trialing Arms

  • We can supply all parts required to build your vehicle - we have designed our chassis to work with well known and proven off-road race parts​.

  • Off-Road Racing Shocks, Suspension Components

  • Axles, Differentials, Wheels, Tyres, Prop Shafts

  • Engines, Transmission, Transfer Cases

  • Full Hydraulic Steering Systems

  • Cooling Packages

  • Seats & Harnesses

  • Wiring, Radio Systems, Pumpers

15 - 17
MAY '20

ULTRA4 Europe - King of Spain


New site in Southern Spain, the most like Johnson Valley, CA in Europe!

19 - 21
JUN '20

ULTRA4 Europe - King of France


Back at the amazing Vallée Bleue for a second year.

9 - 12
JUL '20

Goodwood Festival of Speed


Can Rob Butler retain his crown in the 'Off-Road Shootout' for a second year?

Off-Road Armoury

Unit 2A, Enlightened Business Park, Palehouse Common, East Sussex, TN22 5QZ

United Kingdom

Tel: UK +44 (0)1825 890965


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© 2020 Off-Road Armoury