The Critical Geometry Frame is a breakthrough in cross
country low travel suspension technology. This concept uses
an unconventional approach to rear suspension on a bicycle.
Typical rear suspensions are designed by borrowing technology
from heavy vehicle industries like automotive or motorcycle.
At ProductM we saw that the bicycle is not a vehicle by itself.
For it to properly function it uses a motor (one human being)
that is often times up to 8 times heavier that the frame that
supports it. In other words the rider on a bicycle has more
inertia than the lightweight subframe underneath the rider.
So simply put we attach the pedals and the saddle to the rider
and let the bicycle float underneath. This innovate design
is named the Critical Geometry Frame because it maintains
the critical distances of handle bar to rear axle— this
keeps the handling of the bike quick; and the distance of
the saddle to the pedal— this keeps the riders body
from having to do unnatural crunch like activities that happen
on a bike where the distance changes.
See below for how the suspension has smart action. |