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25.4- mm 15+ 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.

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

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Showing 25 products:

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

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

your price $32.99

BuyBuyPART NUM 114147
FSA SL-K Carbon Post, (SB20) 25.4 X 350mm SBS
FSA SL-K Carbon Post, (SB20) 25.4 X 350mm SBSFull Speed Ahead

Carbon fiber mast bonded to 6061 aluminum clamp/head SB20: 20mm clamp offset features an alloy two bolt Side-By-Side (SBS) head for added … read more

your price $102.80 + ships free

BuyBuyPART NUM 295613
Sunlite Adjustable Suspension Seatpost, 25.4mm x 350mm, Black
Sunlite Adjustable Suspension Seatpost, 25.4mm x 350mm, BlackSunlite

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

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

your price $31.99

BuyBuyPART NUM 391465
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
Zipp Speed Weaponry Service Course SL Seatpost, 20mm Setback, 25.4mm Diameter, 400mm Length, Matte Black, C2
Zipp Speed Weaponry Service Course SL Seatpost, 20mm 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 $172.00 + ships free

BuyBuyPART NUM 492725
Kalloy SP-265 UNO Seatpost, 20mm, 25.4 x 350mm, Sandblast Silver
Kalloy SP-265 UNO Seatpost, 20mm, 25.4 x 350mm, Sandblast Silver

Heat treated 6061 sandblast aluminum (matte finish) 2D forged 1-bolt head 30mm rail clamping area 270g (27.2mm) Item Specifications … read more

your price $19.99

BuyBuyPART NUM 203204
Sunlite Alloy Seatpost, 25.4, 350mm, Black
Sunlite Alloy Seatpost, 25.4, 350mm, BlackSunlite

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 505282
Kalloy SP-265 UNO Seatpost, 25.4 x 350mm, Sandblast Black
Kalloy SP-265 UNO Seatpost, 25.4 x 350mm, Sandblast Black

Heat treated 6061 sandblast aluminum (matte finish) 2D forged 1-bolt head 30mm rail clamping area 270g (27.2mm) Item Specifications … read more

your price $19.99

BuyBuyPART NUM 699915
Pure Cycles Seat Post, 25.4mm x 350mm, Silver Seatpost
Pure Cycles Seat Post, 25.4mm x 350mm, Silver Seatpost

The Pure Cycles seatpost is a no frills no nonsense seatpost perfect for a basic replacement Clamp Size: 25.4mm Length: 350mm Color: Silver Material: … read more

your price $25.99

BuyBuyPART NUM 239655
Pure Cycles Seat Post, 25.4mm x 350mm, Black Seatpost
Pure Cycles Seat Post, 25.4mm x 350mm, Black Seatpost

The Pure Cycles seatpost is a no frills no nonsense seatpost perfect for a basic replacement Clamp Size: 25.4mm Length: 350mm Color: Black Material: … read more

your price $25.99

BuyBuyPART NUM 854766
Black Ops Fluted Seatpost, 25.4mm x 350mm, Sil Seatpost
Black Ops Fluted Seatpost, 25.4mm x 350mm, Sil Seatpost

Anodized silver clamp with an anodized and fluted grooved post Available in a variety of colors to match your style Clamp Size: 25.4mm Length: 350mm … read more

your price $39.99

BuyBuyPART NUM 682674
Black Ops Alloy Anodized Seatpost, 25.4mm x 350mm, Red Seatpost
Black Ops Alloy Anodized Seatpost, 25.4mm x 350mm, Red Seatpost

Fully anodized clamp and post in a variety of colors Available in 2 sizes and 5 colors to match your style Clamp Size: 25.4mm Length: 350mm Color: … read more

your price $35.98

BuyBuyPART NUM 710301
Black Ops Alloy Anodized Seatpost, 25.4mm x 350mm, Purple Seatpost
Black Ops Alloy Anodized Seatpost, 25.4mm x 350mm, Purple Seatpost

Fully anodized clamp and post in a variety of colors Available in 2 sizes and 5 colors to match your style Clamp Size: 25.4mm Length: 350mm Color: … read more

your price $35.98

BuyBuyPART NUM 799616
Black Ops Alloy Anodized Seatpost, 25.4mm x 350mm, Gold Seatpost
Black Ops Alloy Anodized Seatpost, 25.4mm x 350mm, Gold Seatpost

Fully anodized clamp and post in a variety of colors Available in 2 sizes and 5 colors to match your style Clamp Size: 25.4mm Length: 350mm Color: … read more

your price $35.98

BuyBuyPART NUM 332678
Black Ops Alloy Anodized Seatpost, 25.4mm x 350mm, Blue Seatpost
Black Ops Alloy Anodized Seatpost, 25.4mm x 350mm, Blue Seatpost

Fully anodized clamp and post in a variety of colors Available in 2 sizes and 5 colors to match your style Clamp Size: 25.4mm Length: 350mm Color: … read more

your price $35.98

BuyBuyPART NUM 488984
Black Ops Alloy Anodized Seatpost, 25.4mm x 350mm, Black Seatpost
Black Ops Alloy Anodized Seatpost, 25.4mm x 350mm, Black Seatpost

Fully anodized clamp and post in a variety of colors Available in 2 sizes and 5 colors to match your style Clamp Size: 25.4mm Length: 350mm Color: … read more

your price $35.98

BuyBuyPART NUM 270479
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

Currently Sold Out

your price $19.99

InfoInfo
Black Ops Fluted Seatpost with Clamp, 25.4 x 350mm, Red
Black Ops Fluted Seatpost with Clamp, 25.4 x 350mm, Red

Anodized silver clamp with an anodized and fluted grooved post Available in a variety of colors to match your style Outer Diameter: … read more

Currently Sold Out

your price $26.99

InfoInfo
Black Ops Fluted Seatpost with Clamp, 25.4 x 350mm, Silver
Black Ops Fluted Seatpost with Clamp, 25.4 x 350mm, Silver

Anodized silver clamp with an anodized and fluted grooved post Available in a variety of colors to match your style Outer Diameter: … read more

Currently Sold Out

your price $26.99

InfoInfo
Black Ops Fluted Seatpost with Clamp, 25.4 x 350mm, Red/Silver
Black Ops Fluted Seatpost with Clamp, 25.4 x 350mm, Red/Silver

Anodized silver clamp with an anodized and fluted grooved post Available in a variety of colors to match your style Outer Diameter: … read more

Currently Sold Out

your price $26.99

InfoInfo
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!"

See all Sunlite

Full Speed Ahead

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

See all Full Speed Ahead

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

Weight

These products are one of our best sellers.

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.

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

Suspension seatposts are designed with comfort in mind.

Seatpost Clamp Style

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

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

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

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

Weight

Buy this product and your entire order ships for free.

Some orders are inelligible for delivery discounts. See offer details for disqualifying products and destinations.