What is the most common seat post diameter?
What is the most common seat post diameter?
27.2mm
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. A shorter seatpost will typically be lighter in weight but less adjustable.
What size seat clamp do I need for a 34.9 seatpost?
38.0 or 38.2 should be the right diameter for a 34.9 seatpost.
Can a seatpost be too long?
As long as the minumum length is inserted into the frame you will be structurally safe. You can buy a shorter post of course. However, if you need to drop the saddle all the way to the frame the bike is likely too large for you and possibly dangerous, as you will have no standover clearance.
What size seat clamp do I need for a 27.2 seatpost?
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.
How do I know what size dropper seatpost 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.
Are seatposts a standard size?
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’).
What size seat clamp do I need for a 25.4 seatpost?
28.6
25.4 seatpost = 28.6 seatpost clamp.
How much does it cost to cut off a seatpost?
I agree with @ojs answer on point (1), you can just cut it with a hacksaw but with the exception of point (2) “the common consensus seems to be at least 5 cm of insertion” – the standard minimum insertion mark on a seatpost is 100mm, double this.
Is 125mm dropper post enough?
The 125mm is more than enough to get the saddle completely out of the way. I mean if you’re someone with long legs and a 125mm would barely get your saddle below the bar…then yeah…you’ll probably need more drop.
How big should A seatpost be on a mountain bike?
So high-quality frames with 1 1/8″ seat tubes usually had 27.2 mm wide seatposts. A more modern trend, mostly on mountain bikes, where stronger seatposts are required (without too much extra weight) led to a new “oversized” standard of 27.4 mm (and wider). 2. Measuring required seatpost diameter
Where can I find list of seatpost sizes?
This page is a continuation of https://www.sheldonbrown.com/seatpost-sizes.html, a listing of various bicycles, and the seatpost diameters that fit them. Sheldon Brown started compiling a list, and realizing that it was too large a project for one person, he solicited information from readers.
Can a carbon fiber seatpost be used in a metal frame?
Using a carbon-fiber seatpost in a metal frame, or vice versa, invites problems. Metal should be greased, but carbon fiber should not be. The seatpost clamps of metal frames easily damage carbon-fiber seatposts. Most of the size information on the list below was provided by people like you.