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the CX3 plan set...
Just 99!

These plans are also an ideal reference for those wishing to 'do their own thing'.
Use our plans as a guide to produce your own car!

The CX3 plan set includes the following:

  • CX3 body frame manufacture notes.
  • Metal cutting list.
  • Build manual on CD.
  • BRA wiring loom details and colour code for both CX3 and MG3 (Moto Guszzi) variants.
  • Over 100 reference photographs on CD including pictures completed parts and of CX3 chassis production at the BRA factory in North Wales
  • 15 large scale drawings:
    • Top & bottom chassis frame assembly.
    • Various brackets, mounting points, etc.
    • Pedals, pedal box, steering column, badge bar.
    • Gear lever, hand brake lever.
    • Prop shaft.
    • Bottom wishbone.
    • Top wishbone.
    • Front wishbones relative positioning.
    • Front wing stays.
    • Cycle wing stay pattern.
    • Transmission tunnel detail and rear sub-frame/swing arm support detail.
    • Body panels.
    • Speedometer drive unit.
    • Dash pattern and tail board pattern.
    • Seat back & squab patterns.








The CX3 uses the following main components from a Honda CX500/650 motorbike:

  • Engine/gearbox
    Radiator (or any suitable small radiator such as that from a Mini etc or other motorcycle)
  • Throttle cable
  • Clutch cable
  • Battery (or any suitable alternative)
  • Ignition coils
  • CDI unit or ignition spark units (subject to specification of donor motorcycle)
  • Voltage rectifier
  • Wiring loom
  • Speedometer, tachometer and cables
  • Drive shaft and Universal joint
  • Gear lever (the small lever that fits to the gear change spiggot)
  • Rear swinging arm and bearings and bolt fittings. (MUST be CX500; CX650 won't fit)
  • Rear wheel and brake unit. (UST be CX500; CX650 won't fit)
  • Rear brake operating rod
  • Rear mudguard, if required
  • Rear suspension units (UST be CX500; CX650 won't fit)
  • Exhaust system if being used (you can fit a suitable alternative/custom made system)

The car also uses the following additional components:

Steering column:
Almost any small car steering column can be made to fit. You may need to re-engineer it and maybe fit an additional UV joint. You can also, of course, fabricate your own column.

From a Ford Escort mkII:
Steering rack complete, these are available new from the likes of Rally Design (www.rallydesign.co.uk).

From a Ford Cortina Mk IV or V:
Front suspension uprights and stub axles.
Front hubs, bearings and discs.
Front brake callipers.
NB the Cortina parts and be substituted for one of the modern lightweight (alloy) equivalents used by the likes of Westfields and other Lotus 7 inspired cars.

Hand brake lever assembly from a Mini or other suitable car.
Ford Transit RH track rod ends (2) used as top ball joints.
MGB or similar brake master cylinder.

Most of the above parts are available new at reasonable prices. You can also substitute parts for similar performing alternatives.

BRA CX3 New York USAThe plans were drawn in 1999 before the introduction of UK MSVA (Motorcycle Single Vehicle Approval) regulations and therefore UK builders with the intention of registering their car for use on the public highway are advised to familiarise themselves with the MSVA regulations and build their car accordingly. We know of at least three (there were probably many more that never told us) plan built cars which passed the UK MSVA test and were successfully registered for road use.

BRA CX3 Australia

Some changes to the plans may be required to satisfy the requirements of the MSVA test. The MSVA guide is available from VOSA (Vehicle & Operator Services Agency) for just 30. Click here for details.

NB the original tracings and copyright to these plans are owned by James Mather who has kindly agreed to
allow BRA to produce and sell copies either directly of via agents or distributors.


This plan set and other parts are available Now in our On-Line parts shop.
Click here!

BRA CX3 built from BRA Plans!

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Copyright (c) 2006 BRA Motor Works.    Copyright (c) 2009 The Mather-Wiles Partnership.
Site last updated October 2009.    This website is maintained and updated by BRA Cars enthusiast Steve Mass.