Posted 20 hours ago


ZTS2023's avatar
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Joined in 2023

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alot of bikes are made with missmatched seatpost and you will also find some bikes that have a build up of paint around the seatpost hole,on most older steel bikes you can remove that old paint build up with a smooth round file and chase up the correct size seatpost,even some weld splatter stops seat post from fitting correctly,very common on older bikes,you seatpost should fit in without too much force and should not be floppy when you slide it down,you can buy seat post in just about every size,the older 25.4mm ones can still be found on new steel bikes,discarded old bikes are a very good place to look for hard to find seatposts.

To help prevent mistakes when purchasing or changing seatposts, this article explains what kinds of seatpost diameters are most commonly used and how they are measured. Only diameter (width) is dealt with here. The length of the seatpost depends on frame geometry (design) and size – i.e. how much the saddle needs to be raised from the end of the seat tube. A separate article explains the maximum amount of seatpost extension from the frame (minimal insertion length). For seatpost height in terms of bicycle fitting, see: Setting up comfortable riding position. How to measure the seatpost diameter? The easiest and most accurate method is to use calipers (Vernier, or digital), as shown in picture 2. Measuring seatpost diameter using calipers.There's the Canyon VCLS (it stands for Vertical Comfort Lateral Stiffness) seatpost, which uses a 'v' shaped split to create two thinner strips of material and thus disrupt the buzz from that nasty tarmac before it reaches the rider. The FSA SL-K head is harder to adjust precisely and it's heavy. FSA K-Force is lighter and has a similar 2 bolt design to the Save and exists in 25.4 but may be harder to find.

Bike manufacturer says 'contraction of the market' following the pandemic has taken its toll on the sector Measuring a seat tube diameter is often necessary before purchasing, or changing the seatpost. How should one do that? Three methods will be explained here, but one can always be creative. 🙂 Measuring the circumference of the post and dividing by Pi is a good method. There are even circumference tape measures to do it. Having said that: going a bit too narrow can be fixed with some DIY shims from Coca-Cola cans (that’s one thing that drink is good for 🙂 ), If you use a carbon seatpost, make sure to fit it using a thin layer of carbon paste as this stops it slipping. Pay attention to the quoted torque at which you should tighten the bolt - overdoing it can cause it to snap. If you don't own a torque wrench already, here you can find our recommendations for the best torque wrenches for bikes.If the current seatpost is a well-fitting one, and it is 30.9 mm, I’d look for a 30.9 mm dropper seatpost. There are different lengths on offer, too. Seatposts will have a marker which shows the minimum amount of post that can be inside the seat tube. If you ride a small frame with a lot of seatpost showing, you'll need to make sure you buy a post that allows for this. We move forward with a desire to deliver the best possible components to our customers and a determined spirit of competition." to status. UK residents only. Sigma Sports Limited acts as a broker “Licence Number 688619” and not Getting a saddle straight in the clamps can, at times, be a minor faff. Too often the clamp mechanism can be slow to react or overly sensitive to the tightening of the bolts. Not here. I had my saddle set and tightened almost immediately. It really was that simple. Once on, the seat looked reassuringly solid in its level position. I trusted it would remain so once I got riding… Enve carbon seatpost - the ride

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