We are producing a lightweight bicycle-trailer.
The trailer attaches to the bicycle's seat-post and the rear-wheel's axle.
It will be able to pull loads of about 100 kg (220 lb) at a speed of about 10 km/hr (6 mi/hr).
Its wider axle is about 1m wide and rests on 16" wheels,
with a rigid connection to the seat-post frame-corner,
while the narrower axle is about 60 cm wide and rests on paired 14" wheels, with a flexible connection to a steering cylinder attached to the seat-tube.
The trailer adds about 70 cm (2 ft) to the length of the bicycle
and weighs about 8 kg (17.6 lb), excluding tire-weight.
A cargo-carrier can be attached to trailer-frame
using vertical support beams attached to the rear-wheel spindle, the wider axle and the narrower axle,
and an additional attachment at the seat-post frame-corner.
We produced the first functional prototype of the trailer-chassis on October 31st.
We will provide a design description based on updates to that prototype tomorrow.