What size is a specialized seatpost?

The most common rigid seatpost diameters are 27.2mm, 30.9mm, and 31.6mm. Seatposts that are narrower can help smooth your ride due to a minimal amount of flex.

Are bike seats Post Universal?

Yes, most modern bike seats are universal and can be interchanged with different seat posts. The exceptions are if you have much older equipment or a specialized bike. It’s best to check the number of rails and the rail width on your saddle to ensure a correct fit to the seat adapter.

What is the standard bicycle seat post size?

27.2mm
While there are any number of post diameters out there, most modern road and MTB bike frames accept a seatpost of either 27.2mm in diameter (‘standard’), 30.9 or 31.6mm (‘oversize’).

Is a suspension seatpost worth it?

Suspension seatposts can prolong comfort in the saddle, smooth out rough and bumpy terrain, and even help prevent back injuries. There have been various contraptions to suspend and cushion bike saddles since the dawn of cycling. However, many of them had a reputation for being, well, contraptions.

Are all seat posts the same size?

Seatpost diameters generally range from 22 mm to 35 mm in 0.2 mm increments. The most common size is 27.2 mm (1.07 in) for most bikes, especially for the higher-quality models. In some modern bikes with thicker alloy or carbon tubing, larger diameters such as 30.9 mm are used.

How do I know what size seatpost I need?

To find out the diameter of your seatpost, you must remove the seatpost from the bicycle frame and look for the size, which is stamped just below the “Minimum Insert” line toward the bottom. The number will be a three-digit number (such as 26.8 or 27.2 or 31.6).

What are the sizes of bicycle seat posts?

Seat Post Diameter. Bicycle seat post diameter on British or Italian bike frames is typically around 1 1/8 inches in diameter, or 28.6 mm. Older French frames use 28 mm seat posts, and older American style bicycle frames use a 1-inch seat post, according to Sheldon Brown , a bicycle mechanic and writer.

What is the diameter of a mountain bike seat post?

Bicycle seat post diameter on British or Italian bike frames is typically around 1 1/8 inches in diameter, or 28.6 mm.

Why is a setback seat post?

The original purpose of seat post setback is to allow the use of steeper seat tube angles, which in turn, permit shorter chainstays and shorter wheelbases on racing frames. To use a non-setback post like a Thomson on a road bike, the STA would need to be 1.5 degrees less to produce the same saddle position as a traditional seat post.

What is a bike seat made out of?

The bicycle seat, sometimes known as a saddle, is the part of the bicycle on which the rider sits while operating the machine. Generally made from hard plastic and covered with a thin layer of foam and an easily-cleaned cover, the seat is nearly identical on a bicycle whether it was made for a man, woman, or child.