Worth-to-know
Three Basics - One
The trail compensation
The trail is the distance between the
intersection points defined by the imaginary
extension of the steerer tube and the level
surface and the front wheel with the level
surface. This distance defines how strong the
self-stabilizing forces of the frame and the fork
are. When a telescopic fork compresses, the
caster becomes continuously smaller, making
the steering characteristics of the bike rather
“nervous”, especially when you are braking!
As a trapezoid fork, the GA-force kilos trail can and has been modified, so a
constant trail and steady steering characteristics are achieved.
Pic. 1
Three Basics - Two
The wheel trajectory curve
is pictured as line A,
describing the movement of the front hub during the
compression of the fork. Together with the friction
free bearings used in the connection points of the
joints this curve is the primary reason for the ultra
smooth responsive behaviour of the fork. The
beginning of the curve shoes in the same direction in
which the front wheel is forced by obstacles on the
trail (line B). This is extremely useful for absorbing
high frequency impacts.
Line C shows the linear movement a telescopic fork describes during compression.
Pic. 2
Three Basics - Three
The anti-dive-effect
The compression of the fork during braking is
avoidable when using the trapezoid design.
Through variation of the geometry of the levers of
the trapezoid fork our engineers can exactly define
the amount of travel at which the anti-dive effect
completely compensates the fork compression due
to braking. At the GA-force kilo the anti-dive-effect
completely equalizes the acting forces at 50 % of
travel.
