I thought it best to build a prototype to test the steering geometry, as wobbles have been reported. This to be built with aluminium section and composite rear triangle.

This is the geometry involved. The idea of the tilt axle is from Vi Vuong, aka Futon Express, from the USA.

The rear axle uses a bottom bracket system, 100 mm cranks, 15 mm axles and the chain wheel represents a disc brake to stop the tilting.

Chassis with drive structure, longerons, windscreen frame and ‘’gills’’ for bending.

These are the intersections to define body parts and joints.

The final iteration with 26 inch wheels all round.