Can you reverse an offset seatpost?

Seatposts are typically not reversible because of limited range on the saddle angle adjustment.

Can you reverse a setback seatpost?

Thomson says its ok.

A - Yes, the setback seatpost can be used as a set forward seatpost. No modifications are necessary.

Can you reverse a seatpost?

Some seat post clamps do not have enough range of motion to make the seat level when reversed. But the bigger issue is that this isn't the right way to fit the bike. You should adjust the seat and post to position your knees and leg extension properly and then change the front end around to get the reach you need.

Does seatpost offset matter?

There is no advantage to a zero setback seatpost for a road bike. Fewer people all the time take any stock in the idea that femur length and the resulting knee over pedal measurements are relevant to producing the proper rider position. It's better to have the rider properly balanced over the saddle and ignore KOP.

What does an offset seatpost do?

A seatpost with offset is necessary when the seat tube angle of the frame is too steep to give the desired saddle setback (the horizontal distance between a plumb line hung from the nose of the saddle and the bottom bracket spindle). Conversely, an "in line" post may be required if the seat tube angle is too slack.

20 related questions found

How do I know if I need an offset seatpost?

Straight and Setback Seatposts

The amount of setback or offset is best determined through a basic bike fit at a participating bike shop. They will look at the relationship between your knee and pedal axle, as well as your hip angle/mobility and will determine how far you should sit behind your crankset.

What is a zero offset seatpost?

Seatposts can be zero offset, or come with layback. A zero offset seatpost will place the saddle directly above the clamp - though of course you can adjust it forward and back on the rails.

Why do seatposts have setbacks?

Road bikes for years have had posts with setback- a seatpost where the clamping area for the saddle was behind the centre of the post that came up from the seatpost. The theory behind this was to allow for proper weight distribution (ideally 60 % on the rear of the bike, 40 % on the front).

Should I get seatpost with setback?

Achieving a good weight balance nearly always requires a setback seatpost, to move the saddle back and reduce weight on the riders hands. I found that moving my saddle back not only improves comfort, but also allows me to tolerate more saddle to handlebar drop.

Do carbon seatposts break?

Registered. carbon seatposts not only break from being run very high, but also from being run low, because the flex is in in a smaller area, i had an easton post do this.It wasn't a catastrophic failure just a crack. I'd leave the carbon posts on the road bike and stick with a 7075 or 7005 mtb post, two bolt.

What is an inline seatpost?

Layback: A seatpost shaft can be inline (i.e. straight, with no kinks or bends) or layback (with a shallow-angled bend towards the top of the shaft which puts the saddles slightly farther back relative to an inline post).

What is saddle offset?

Bike saddle offset is similar to saddle setback, although offset or “layback” comes from the seat post rather than adjustment of the saddle. Bike saddle offset can range from 0 mm to 45 mm and is often used when riders with longer femur's need to get further behind the bottom bracket.

How do you measure seatpost offset?

It's measured from the seatpost centerline to the center of the clamp.
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Most manufacturers do this:

  1. trace an imaginary line (or tie a string) along the center of the seatpost entry into the bike a few inches down the seat tube.
  2. extend that straight line past height of the seat rail clamps on the post.

Are titanium seatposts any good?

The USE titanium shaft has both qualities in spades. Fit it in place of your alloy seatpost and you'll feel the difference. It's not suspension or a magic cure for the bump allergic, but it does allow you to relax in the saddle, to commit your weight to the seat when riding over intermediate level trail chatter.

Are suspension seat posts any good?

Suspension seatposts provide a cost-effective way to smooth out the shocks and bumps in the road or track, without the need to buy a 2nd (3rd/4th) bicycle. Big tires offer a lot of cushions, but due to their large surface area can seriously slow you down on the roads.

Can you put a carbon seatpost in an Aluminium frame?

A carbon seat post may get stuck in an aluminum frame even when carbon paste is applied. The chances are low, but the outcome is not unheard of when the seat post isn't removed over a long period.

What is a layback seatpost?

A layback seatpost is one that positions the saddle clamp behind the centre line of the seatpost.

What is setback on a bike?

Saddle setback in cycling refers to the horizontal distance between the centre of the bottom bracket and the front tip of the saddle. Over the past few decades two principle methodologies for determining optimal saddle setback have emerged in the bike fitting community.

How do I choose seatpost length?

Length. Make sure you have the correct length of seatpost for your needs. Seatposts are available in several lengths from 280mm to 400mm so measure the amount of post you have showing (plus the minimum amount of insertion that needs to be in the seat tube) before purchase. If in doubt, measure your old post.

How do you measure a setback saddle?

Your setback is measured as the distance between the vertical planes of the center of your bottom bracket and the nose of your saddle.

How are seatpost tubes measured?

The length of the seat tube measured from the center of the bottom bracket to the junction of the seat tube and the centerline of the top tube.

What diameter seatpost do 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).

How do I know if my saddle is too far back?

Below is a list of possible signs that your saddle is too far back:

  • Pain in the back of both your knees (pain in one knee is a sign that your saddle is too high)
  • Feet go numb (from “toeing” the pedals)
  • Upper hamstring pain in both legs.
  • Quads only feel like they are working on climbs as you sit more forward on the seat.

What happens if your saddle is too high?

A saddle that is too high will cause the hips to rock back and forth. Not only does this detract from pedalling efficiency, but it can also be extremely uncomfortable. Discomfort can show up in your lower back or as knee pain (especially in the back of the knee).

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