The design of our asymmetric rear fork we presented at SPEZI 2007 astonished not only recumbent bike riders but also professionals. It is not a gadget for a mere showing of! You can experience the functionality of its original shape and of its unique fit into AZUB frames on Mini, 5, Max and HardCore AZUB models.

The radius of this asymmetric rear fork inserting gives plenty of space to the movable chain pulley which eliminates the so-called pogo effect (lateral swinging of a recumbent bike when pedalling rhythmically or using force) and substantially improves the smoothness of a chain circulation. The equilibrium and qualities of the whole construction are assured by the radius of rear shock inserting in the opposite direction.

The whole rear fork is made of specially designed thin-wall tubes AL 7020. It gives it two essential qualities that you are looking for: stiffness and extremely light weight. The interchangeable rear derailluer hanger of the gear system has become a standard feature of all AZUB models; i.e. Mini / 5 / MAX / HardCore / Bufo / Apus and Ibex.