The Quattrocycle is being steered by the person sitting on
the rear left seat, using two handle bars.
The Quattrocycle has 4 drum brakes. The rear brakes are
operated by the grips on the handle bars. The front
brakes are
operated by moving both handle bars to the front.
The seats are manufactured from textilene, this is weather
resistant and once wet, it dries quickly.
Where possible, standard components have been used from
Shimano, Union and Tomos. This guarantees a high
quality and
long term availability of spare parts.
Shifting gears is done by standard gear hubs as normally
used in
the rear wheel of a bike.
The Quattrocycle has four of these hubs such that everyone
can
shift gears individually and everyone has its own
freewheel.
Both front and rear axle have suspension. This makes riding
the
Quattrocycle very comfortable.
The seats are continuously adjustable over the frame over a
distance of 37 cm. Therefore children
of about 6 years can already pedal on the Quattrocycle.
Loosening and fixing the seat on the
frame is done by a single movement using an excenter
clamp.
The Quattrocyle has a so called Flexframe. This frame is
flexible in such a way that all wheels stay
on the ground at all times, also when riding uneven
terrain. By means of this special frame
overloading of the frame is prevented. Using the
flexframe concept, a lightweight frame can carry
the weight of 4 persons.