How Much Travel Do I Need On A Dropper Post?

by | Last updated on January 24, 2024

, , , ,


100mm is fine

, and 125mm works well too.

Does dropper post travel matter?

Should post travel be a function of how tall the rider is? Simply put, Yes. If you are looking to drop the saddle to a position that is still comfortable to pedal in, the rider with shorter legs is going to need less drop, and a long-legged rider more.

Is a longer dropper post better?

100mm is the starting point for most dropper posts. That amount of drop makes a noticeable difference, but we’ve found that

longer travel posts do a much better job of maximising the clearance while maintaining a proper seated pedalling height

.

Is 125 mm dropper enough?


For shorter peeps, 125mm may be enough

. I found 150mm was adequate (have that on my hardtail) but my FS sled is equipped with a 185mm dropper — total bliss.

What does 100mm travel mean?

Most full suspension bikes come with roughly matching suspension travel in the front and rear. So

if the rear shock gets 100mm travel, the bike will likely be spec’d with a 100mm travel fork (or thereabouts)

. 80mm – 100mm Travel: “Cross Country” Bikes.

Do I need more than 100mm travel?

Depending on your skill, riding style, and terrain, there is likely an ideal amount of suspension travel. Other specs such as geometry, wheels, and tires matter too, but they are usually tailored to match a bike’s suspension.

Most modern mountain bikes will have somewhere between 100mm and 170mm of suspension travel

.

What size dropper do I need?

To choose the correct travel dropper post, measure from the seatpost collar to the seat rail (in your climbing, or highest setting) on your current bike. Subtract 50mm from this measurement and the resulting number is the maximum travel length dropper post you can comfortably run.

Do I need a dropper post for XC?


XC riders initially resisted dropper seatposts, due to the weight burden, but demand will always father innovation

. As a result, the best short-travel dropper posts are now feathery light, which might be short in terms of comparative travel, but ideal for gram counting XC riders.

Can you put a dropper post on any bike?


A dropper post can be a great upgrade for any mountain bike

, but it’s important to find one that’s compatible with your bike. Here’s a few things you’ll need to consider: Seat post width – you will need to identify the width of your existing seat post as this is the size you will need when choosing a dropper.

How is dropper post calculated?

To figure out your max insertion length, measure from the frame bend, routing port, pivot bolt that stops the post from going down, etc. Basically,

the spot where the post bottoms out in your frame, measure from there to the top of your seat tube

.

Can you install a dropper post on any bike?

How long of a seatpost do I need?

The CPSC rule in the US is that the seatpost must be inserted

two diameters of the seatpost into the frame

. If it’s a 27.2 mm seatpost, it must extend 54.4 mm into the frame, which is 2 1/8′′.

Do dropper posts have suspension?

PNW Components says, “

The Coast dropper is the world’s first Suspension Dropper Post

, combining ride smoothing suspension and the benefits of a dropper into one seat post. This dropper is designed to help riders on all types of bikes, from packed up trekkers, to the cross country wanderers, even the weekday commuters.”

How long does a dropper post take?

Typically, droppers are available in travel lengths of

80mm,100mm, 125mm, and 150mm

, however, both longer and shorter options also exist. Before buying, make sure the post is long enough when extended to give your preferred pedaling height.

How much is a drop in a dropper?

Pharmacists have since moved to metric measurements, with a drop being rounded to exactly

0.05 mL

(50 μL, that is, 20 drops per milliliter).

Is 120 enough to travel?

In addition, you’re not likely to notice much difference between a 120mm, 130mm, and 140mm fork. Honesty,

a 120mm fork is enough travel for most Trail riders

.

Is 100mm travel enough on a 29er?


yes, it’s plenty

. pro-Dh’ers need/use 200mm-ish. mere mortals will be riding stuff that’s half as gnarly*, half as fast*. that’ll be 100mm being plenty for us then.

What does 120 mm travel mean?

Suspension may be referred to as short or long travel:

Short-travel suspension (less than 120mm) suspension provides all-round riding performance with an emphasis on smooth trails and going uphill

. Long-travel suspension (greater than 120mm) is best for descending rough terrain at high speeds with greater control.

Is 170mm travel too much?

But Yeah,

170mm will still be fine

, you are getting on for DH-esq travel, however if you think you might make use of it, or it will help you man up a shade more then there’s no harm in giving it a whirl.

How much travel should a hardtail have?

It depends totally on your riding style and the intended use. For pretty much XC or dirt jump, go with a 100mm XC or dirt jump fork. For general trail riding a

120 to 130

would work well. For AM to light Free ride a 140 to 160mm fork would be the ticket.

How much travel should you use?

Set sag between 20-30%.

If you only ride smooth trails, you should still use about 3/4 of the travel

. Measure this, since the exposed stanchion is longer than fork travel. If you start to ride harder or start to ride rougher trails and bigger drops, you will need to add air.

Can a 31.6 seatpost fit a 30.9 frame?

You can fit a narrower post into a wider frame using a shim (a thin sleeve of aluminium or plastic), for example a 30.9 mm dropper post into a 31.6 mm frame. However,

there is no way to fit a wider post in a narrower frame

, for example a 31.6 mm post into a 30.9 mm frame.

How much volume is a dropper?

A typical dropper has about

1.5 ml

. there are 30 ml in this bottle.

How do I get a full dropper?

A dropper full is when you

squeeze the bulb at the top of the dropper and put it in the solution and release

. It will not fill completely but you will get the right amount.

Jasmine Sibley
Author
Jasmine Sibley
Jasmine is a DIY enthusiast with a passion for crafting and design. She has written several blog posts on crafting and has been featured in various DIY websites. Jasmine's expertise in sewing, knitting, and woodworking will help you create beautiful and unique projects.