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25.4 mm Bicycle Seatposts

The seatpost diameter must match to the seat tube diamater of your frame. If replacing a seatpost, you can usually find this measurement etched near the bottom of your current post.

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Showing 79 products:

FSA SL-K Carbon Post, (SB0) 25.4 X 350mm
FSA SL-K Carbon Post, (SB0) 25.4 X 350mmFull Speed Ahead

Carbon fiber mast bonded to 6061 aluminum clamp/head SB0: zero clamp offset, head is inline with post, and features a Minimal Top Clamp to … read more

10% offretail $96.00 Ends 12/5! $86.40 + ships free

BuyBuyPART NUM 490641
EVO E-Force Zero Seatpost, 25.4 x 400mm, Black
EVO E-Force Zero Seatpost, 25.4 x 400mm, Black

CNC 6061 aluminum construction No Offset 400mm length Precise seat angle adjustment with 2 Cr-Mo bolts Item Specifications … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

your price $27.99

BuyBuyPART NUM 729443
Cirrus Cycles Kinekt 2.1 Suspension Seatpost - 25.4, 350 mm, 25 mm Travel, Alloy, Black, Large
Cirrus Cycles Kinekt 2.1 Suspension Seatpost - 25.4, 350 mm, 25 mm Travel, Alloy, Black, Large

The Kinekt aluminum 2.1 Seatpost is sleek and versitle, providing pre-load capability to effectively isolate your body from surface vibrations and impacts. … read more

$37 offretail $249.95 Ends 12/31! $212.46 + ships free

BuyBuyPART NUM 325236
Sunlite Alloy Seatpost, 25.4, 350mm, Silver
Sunlite Alloy Seatpost, 25.4, 350mm, SilverSunlite

Forged alloy construction Integrated index adjust seat clamp Weight: 325g Outer Diameter: 25.4mm Length: 350mm Color: … read more

your price $19.99

BuyBuyPART NUM 836569
Sunlite Adjustable Suspension Seatpost, 25.4mm x 350mm, Silver
Sunlite Adjustable Suspension Seatpost, 25.4mm x 350mm, SilverSunlite

Adjustable pre-load design Coil spring provides plush suspension Micro adjust seat clamp Outer Diameter: 25.4mm Length: … read more

your price $31.99

BuyBuyPART NUM 114147
EVO  E-Force AL Seatpost, Black, 25.4 x 400mm
EVO E-Force AL Seatpost, Black, 25.4 x 400mm

Alloy construction Length: 400 mm 20mm offset Easy single bolt seat angle adjustment Item Specifications Offset: 20mm … read more

your price $19.99

BuyBuyPART NUM 980928
Kalloy Uno 602 Seatpost 25.4 x 350mm Black
Kalloy Uno 602 Seatpost 25.4 x 350mm Black

Item Specifications Length: 350 Clamp Style: Standard Rails Diameter: 25.4 Color: Black … read more

your price $19.99

BuyBuyPART NUM 431555
Odyssey Intac Railed Seatpost - 25.4mm, 300mm, Black
Odyssey Intac Railed Seatpost - 25.4mm, 300mm, Black

Odyssey Intac seatpost. Item Specifications Diameter: 25.4 Color: Black Clamp Style: Standard Rails Length: 300 … read more

your price $26.99

BuyBuyPART NUM 849106
Kalloy Uno 602 Seatpost 25.4 x 350mm Silver
Kalloy Uno 602 Seatpost 25.4 x 350mm Silver

Item Specifications Clamp Style: Standard Rails Color: Silver … read more

your price $18.99

BuyBuyPART NUM 914898
Origin8 Pro-Fit Seatpost, 25.4 x 400mm, Silver
Origin8 Pro-Fit Seatpost, 25.4 x 400mm, Silver

Forged AL6061-T6 alloy construction Micro-adjust 2-bolt hinged clamp design Extra-long 400mm post 0mm setback Outer Diameter: … read more

your price $30.99

BuyBuyPART NUM 218549
Zoom 25.4 x 300mm Black Straight Alloy Post
Zoom 25.4 x 300mm Black Straight Alloy Post

Zoom Seatposts Item Specifications Color: Black Length: 300mm Material: Aluminum Seatpost Diameter: 25.4mm Offset: 0mm Seatpost Type: Rigid … read more

your price $9.99

BuyBuyPART NUM 210195
Thomson Elite Seatpost Black 25.4 mm x 330 mm
Thomson Elite Seatpost Black 25.4 mm x 330 mmThomson

Over 40% stronger on ultimate strength test than the strongest production seatposts on the market. Over double the fatigue life of any … read more

StarStarStarStarStar 4.5 of 5 ( 4 ) 4.5 of 5 stars average ( 4 reviews )

your price $114.95 + ships free

BuyBuyPART NUM 283841
Salt AM Pivotal Seat Post 260mm Black
Salt AM Pivotal Seat Post 260mm BlackSalt

6061-T6 alloy, 2pc design Item Specifications Color: Black … read more

10% offretail $17.99 Ends 12/9! $16.19

BuyBuyPART NUM 958069
Zipp Speed Weaponry Service Course SL Seatpost, 0mm Setback, 25.4mm Diameter, 400mm Length, Matte Black, C2
Zipp Speed Weaponry Service Course SL Seatpost, 0mm Setback, 25.4mm Diameter, 400mm Length, Matte Black, C2

Matching Zipp Service Course SL bars and stems in both form and function. Dual bolt, low profile micro adjust cradle Machined internal shaft … read more

your price $160.00 + ships free

BuyBuyPART NUM 870373
Sunlite Unicycle Seatpost 200 x 25.4 4-Bolt
Sunlite Unicycle Seatpost 200 x 25.4 4-BoltSunlite

4-Bolt Post Outer Diameter: 25.4mm Length: 200mm Chrome Setback: 0mm … read more

your price $12.99

BuyBuyPART NUM 547405
Odyssey 25.4mm Pivotal Seatpost 200mm Black
Odyssey 25.4mm Pivotal Seatpost 200mm Black

Odyssey pivotal seatposts feature a laser-etched logo and are made of forged aluminum. Item Specifications Color: Black … read more

your price $25.99

BuyBuyPART NUM 943536
Black Ops MX-SS Seatpost, 25.4 x 250mm, Silver
Black Ops MX-SS Seatpost, 25.4 x 250mm, Silver

PIVOTAL compatible Polished Stainless steel shaft Durable and weather resistant finish Reinforced shaft design for strength … read more

your price $29.99

BuyBuyPART NUM 831751
Black Ops Pivot Pro Seatpost, 25.4 x 135mm, Black
Black Ops Pivot Pro Seatpost, 25.4 x 135mm, Black

PIVOTAL Compatible Ultra-light 6061 forged alloy construction Reinforced wall construction Outer Diameter: 25.4mm Length: … read more

your price $29.99

BuyBuyPART NUM 507448
Full Speed Ahead

"We move forward with a desire to deliver the best possible components to our customers and a determined spirit of competition."

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Sunlite

"Every year bikes change, styles and trends evolve, old bikes are in need of repairs and new bikes are waiting for that personal touch. We provide the means to keep your bike on the road and fun to ride!"

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Thomson

Thomson is leading with innovative design for two primary markets - aerospace and cycling.

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Eclat

"Simplicity is the hardest design principle to follow; It's at the heart of our approach to eclat."

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We The People

"W-T-P have always taken a lot of pride in ourselves and in building bikes that are capable of taking everything a rider throws at them. We are constantly at the forefront of developing and manufacturing materials that will with stand hard and furious riding and our designs are made to combat common breaks and bends."

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We define color as the main color of the item. It may have accents or highlights in other colors.

In Store products are available to view in our showroom. In Store orders usually ship the same or next business day.

These models are available for online purchasing and can be shipped directly to you.

The seatpost diameter must match to the seat tube diamater of your frame. If replacing a seatpost, you can usually find this measurement etched near the bottom of your current post.

Seatpost length is measured in millimeters. It is typically measured from the bottom of the post to the center of the rail mount.

Rigid seatposts are the most common type of seatpost with no suspension or dropping capability.

Suspension seatposts are designed with comfort in mind.

Seatpost Clamp Style

This is the part number or identifier for this item from the manufacturer

Weight

Offset is often referred to as setback. This is the distance in mm that the clamp is offset from the center of the seatpost.

Seatpost Material

On a dropper post, this is the distance that the post will drop.

Our Lowest Price - This product is ineligible for additional discounts or rebates.

Weight

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