Friday, 08 January 2010 15:14


"The bike felt precise and very responsive in the corners. The Pure 4x frame shares similar technology to that of our Pure BMX frames which has the benefit of reducing power loss through torsional flexing. This translates into super quick starts out of the gate and turning tight lines in the corners. The bike felt very light and effortless to ride when pushing through the technical sections"
titanium 4X frame designFollowing the same ethos as the Pure BMX Ti frame the Pure 4x Ti frame has been designed to reduce power loss and improve acceleration and handling. These design features are explained below:

Horizontally ovalised top tube and down tube wrap around the head tube to form a
large junction area which gives additional strength compared to
traditional interactions (that typically only connect to the rear of
the head tube).

The top tube is curved to form an interaction area at the head tube and seat
tube greater than if it were straight. The seat tube in punched thought
the top tube; this increases the surface weld area resulting in
additional strength and greater horizontal stiffness throughout the
frame.

The seat stays butt up to the top tube at an acute angle to increase the surface weld
area and improve contact strength, therefore maintaining the horizontal
stiffness throughout the frame.

The seat and chain stays have been stress graded; this gives the frame
vertical compliance (will absorb large heavy impacts) while keeping the
horizontal stiffness. This reduces torsional flexing and therby
reducing power loss through the frame.
To read about all the unique design features of PURE frames please visit
They also do a pretty good BMX I've heard



