| Accessories | Bicycles | Parts | Specials | Tools |
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| Accessories | Bicycles | Parts | Specials | Tools |
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About Sizing:
Seatposts come in .2 mm size increments, and it is important to get the correct size. Your present seatpost probably has the size marked on it, down near the bottom. If you don't know the exact size, most bike shops have special stepped "sizing rods" that make it easy to determine the correct size.This site features a page with a Seatpost Size Database . The Database is provided as a courtesy, but we cannot guarantee the accuracy of the information in it. If you buy a seatpost and it turns out to be the wrong size, you may return it for credit if it is absolutely unmarked. Transportation costs are your responsibility.
Choices, Choices
Seatposts come in skillions of different sizes, and models. We try to keep most of the popular sizes in stock in models that we consider to be a good value.If you don't see what you want here, we can probably order whatever you desire from Quality Bicycle Products, and get it in a few days.
Click here to search QPBs seatpost choices.
Seatpost Installation
Seatposts should never be inserted dry, only with grease. Some frames have irregularities inside the seat tube that can easily scratch a seatpost if you are not very carefu. Such frames can usually be cleaned up with a file, flex hone or adjustable reamer. Scratched seatposts will not be accepted for return.
Seatpost Materials
All of the seatposts we feature are aluminum alloy, unless specified otherwise.We do not recommend plastic (carbon fiber) seatposts, but if you insist on this inferior material, we will be glad to special order them from QBP
| "Laprade Type" Seatposts with built in clamp, use 8 mm Allen wrench . | |
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Various Diameters from 25.0 mm up $19.95
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| Kalloy (or similar Laprade type)
These are basic, good quality seatposts with a "Laprade type" one bolt clamp. We usually have these in the 350 mm length in a wide range of sizes. This is as good a seatpost as most people need. Sometimes we get these from different suppliers with different brand names. Color: Silver | |
| Salsa "Shaft" Seatposts with built independent tilt/fore-aft adjustment . | |
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| Popular 27.2 mm size, 350 mm length $59.95
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| Traditional "pipe type" seatposts, use with separate saddle clamp. | |||
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| Size mm | Size Inches | Application | |
| 22.2 | 7/8" | Fits most BMX bikes and many other American type frames. | |
| 25.4 | 1" | ST2021 $11.95
| 300 mm length, aluminium. Fits older Nottingham Raleighs among others. |
| Saddle Clamp | ST4200 $4.95
| Fits the 7/8" top of seatposts shown above, for standard two rail saddles.
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| Genuine Brooks Saddle Clamp | ST4202 $20.95
| Fits the 7/8" top of seatposts shown above, for Double-Rail (two rails per side) saddles like Brooks B66.
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