Molded into a single piece of carbon fiber, the 4ZA Cirrus Pro seatpost is light, stiff, and durable. Designed and tested in the real world lab of Belgium.

The 4ZA Cirrus seatpost provides the comfort and stiffness at an affordable price. Designed and tested in the real world lab of Belgium.

Strong, stiff and light the 4ZA Stratos seatpost provides the perfect perch for any bike. Designed and tested in the real world lab of Belgium.