CrankBrothers Cobalt 3 seatpost 30.9x400 Zero degree

We’ve been using the carbon and alloy versions of this post and we've been generally pleased with the performance of both. The alloy one tested here is good value, well made and light enough to flatter the flightiest of weight-weenies’ bike.

CrankBrothers never back away from avant-garde design and the head of the Cobalt post is clever, unusual and, for the most part, foolproof. A single bolt pulls two clamps in towards the centre of the post where a central plate with curved rail guides supports the inside edges of the rails. When done up tight, the Torx T25 bolt creates a very strong hold on the rails.