Seat posts

Seat posts are a very important part of a bike; they connect the seat to the bike frame allowing the rider to sit at a comfortable height.

Seat posts come in many different sizes, but most commonly come in either 27.2, 30.9, or 31.6mm diameter.

Seat posts are made from a large variety of materials including steel, aluminum, titanium and carbon fiber. There are also seat-posts with built-in vibration damping for rougher rides or off-road terrain.

See more bike anatomy