What is the diameter of the seat post on Citizen folding bikes? - Project Sports
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What is the diameter of the seat post on Citizen folding bikes?

5 min read

Asked by: Maria Miller

31.8mm31.8mm.

What is the diameter of my seat post?

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 is the diameter of a bicycle seat post?

27.2 mm

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.

How do you measure a bike seat post?

Quote from video: So now most people aren't going to have a seatpost gauge lying around i happen to have one but so you're going to want to use a like a digital caliper. Here in measuring millimeters.

What size seatpost clamp do I need?

Note: The seat clamp diameter needs to match the diameter of your seat tube rather than your seatpost, which is a little smaller. For example, a 27.2mm seatpost (a size commonly found on road bikes) fits inside a 28.6mm diameter seat tube, so it’s a 28.6mm clamp you need.

Are all bike seats the same?

Bike saddles come in different sizes to accommodate different body types. Finding a bike saddle that is the right size for your body mostly has to do with the width of the saddle and how well it supports your ischial tuberosities (sit bones).

What size is a specialized seat post?

All models use a 34.9mm seat post and a 38.6mm seatpost collar (S184700004).

What are the different types of bike seat posts?

Alloy, titanium and carbon are the three materials to choose from. Alloy posts are relatively light, cheaper and easy to install and maintain but they can be a harsh ride. Titanium posts are expensive but light and offer a softer ride. Carbon posts are not only lighter but can also soften the ride.

What size seat clamp do I need for a 34.9 seatpost?

Clamp diameter: 34.9mm. Seat Post Fit: 31.6mm. Weight: 25g.

How long should your seatpost be?

a) Seatpost should end at least 25 millimeters below the lower part of the horizontal tube weld to the seat tube. b) Total inserted length should be at least 90 mm from the top end of the seat tube.

How do I choose a seatpost?

The dimensions of the seat tube can vary from bicycle to bicycle, so when choosing a seatpost, it’s important to get the correct diameter. The most common diameter is probably 27.2mm, but other sizes between 21.15 and 35mm are often found as well. Seatposts also vary in length.

What size is a Schwinn seat post?

Schwinn Scripted Chrome Seat Post 20.57mm x 5/8″ Top 14″ Long – New.

What is the size of giant seatpost?

Most giants use a 27.2mm post in a 30.8/9 shim. 30.8 and 30.9 doesn’t sound like much, but it’s the difference between a post that slips and one that doesn’t. Older giants used a 30.8,which was a stupid giant only size. recently they switched to 30.9 which is a pretty common size.

Are bike seat posts universal?

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’).

How do you measure sit bone width?

This method involves sitting upright on a piece of corrugated cardboard for a designated period of time. After that point, you’ll mark the main impressions of the sit bones, find the center point of the two impressions, and finally measure the distance between the two points with a ruler or tape measure.

What happens if your bike saddle is too wide?

A bicycle saddle that is too wide causes chafing due to your thighs rubbing against the sides of the seat and reduces pedal efficiency since the saddle interferes with your pedaling motion. Also, aerodynamics is worsened from the increased contact area between your spread-out legs and the increased air resistance.

How do I choose a seatpost?

The dimensions of the seat tube can vary from bicycle to bicycle, so when choosing a seatpost, it’s important to get the correct diameter. The most common diameter is probably 27.2mm, but other sizes between 21.15 and 35mm are often found as well. Seatposts also vary in length.

What size is a Schwinn seat post?

Schwinn Scripted Chrome Seat Post 20.57mm x 5/8″ Top 14″ Long – New.

What size seat clamp do I need for a 34.9 seatpost?

Clamp diameter: 34.9mm. Seat Post Fit: 31.6mm. Weight: 25g.

How long of a seatpost do I need?

a) Seatpost should end at least 25 millimeters below the lower part of the horizontal tube weld to the seat tube. b) Total inserted length should be at least 90 mm from the top end of the seat tube.

Can I cut my seatpost down?

Condensed answer: A bicycle seat post can be cut as long as the new size respects the minimum insertion length of the seat post. Ignoring the minimum insertion length and cutting too much of the seat post will result in extra stress on the frame (seat tube) and may cause a crack.

How Short Can I cut my seat post?

If you want to cut your Seatpost shorter, it’s recommended that you cut it at a maximum of 1-inch per side. For example, if your bike has a 27.2mm Seatpost diameter and you want to shorten it by two inches, you can cut the post down to 25.2mm in diameter.