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Aluminum Available Bicycle Seatposts

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

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Cane CreekThudbuster LT  G4 Suspension Seatpost - 27.2 x 390mm, 90mm, Black
Cane CreekThudbuster LT G4 Suspension Seatpost - 27.2 x 390mm, 90mm, BlackCane Creek

Building on Thudbuster's proven parallel linkage technology, Cane Creek has completely re-designed the seatpost for increased durability, a higher rider … read more

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

your price $199.99 + ships free

BuyBuyPART NUM 405955
Cane Creek Thudbuster ST G4 Suspension Seatpost - 30.9 x 375mm, 50mm, Black
Cane Creek Thudbuster ST G4 Suspension Seatpost - 30.9 x 375mm, 50mm, BlackCane Creek

Building on Thudbuster's proven parallel linkage technology Cane Creek has completely re-designed the seatpost for increased durability, a higher rider … read more

your price $199.99 + ships free

BuyBuyPART NUM 705891
Ritchey Classic 2-Bolt Post, 27.2 x 350mm, Silver
Ritchey Classic 2-Bolt Post, 27.2 x 350mm, SilverRitchey

3D forged 2014 aluminum shaft, 2-bolt adjustable 2014 aluminum head 38mm rail clamping area. 245g (27.2x350mm) Item Specifications … read more

StarStarStarStarStar 5 of 5 ( 2 ) 5 of 5 stars average ( 2 reviews )

your price $69.95

BuyBuyPART NUM 644997
Thomson Elite Set Back Seatposts - Black - 31.6 x 410 mm
Thomson Elite Set Back Seatposts - Black - 31.6 x 410 mmThomson

The Elite Set Back Thomson Seatpost has a post and cradle which are machined from one piece of 7000 aluminum. Post and cradle are machined from one … read more

your price $114.95 + ships free

BuyBuyPART NUM 786360
Thomson Elite Seatpost Black 27.0 mm x 330 mm
Thomson Elite Seatpost Black 27.0 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 other production … read more

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

your price $114.95 + ships free

BuyBuyPART NUM 541131
Crank Brothers Highline 3 Dropper Seatpost - 27.2, 80mm, Black
Crank Brothers Highline 3 Dropper Seatpost - 27.2, 80mm, Black

The all-new Highline delivers infinite adjustment, smooth feel, and easy installation for any bike. Remote sold separately. Shorter insertion … read more

$24 offretail $249.00 your price $224.10 + ships free

BuyBuyPART NUM 694209
Thomson Masterpiece Seatposts Silver
Thomson Masterpiece Seatposts SilverThomson

The Thomson Masterpiece Seatpost is not for everyone. We at Thomson wanted to create the best seatpost possible without regard to cost. The … read more

your price $159.95 + ships free

BuyBuyPART NUM 222314
Sunlite Alloy Pillar Seatpost, 26.8, 350mm, Silver, No Clamp
Sunlite Alloy Pillar Seatpost, 26.8, 350mm, Silver, No ClampSunlite

Forged alloy construction Pillar style design Outer Diameter: 26.8mm Length: 350mm Color: Silver Material: Alloy … read more

your price $13.99

BuyBuyPART NUM 345300
Dimension Suspension Seatpost 27.2mm  x 350mm Silver
Dimension Suspension Seatpost 27.2mm x 350mm SilverDimension

Dimension Seatposts Item Specifications Length: 350mm Seatpost Diameter: 27.2mm Seatpost Type: Suspension Clamp Style: … read more

StarStarStarStarStar 4.7 of 5 ( 3 ) 4.7 of 5 stars average ( 3 reviews )

your price $36.99

BuyBuyPART NUM 892805
Sunlite Alloy Seatpost, 25.8, 350mm, Silver
Sunlite Alloy Seatpost, 25.8, 350mm, SilverSunlite

Forged alloy construction Integrated index adjust seat clamp Weight: 325g Outer Diameter: 25.8mm Length: 350mm Color: … read more

15% offretail $19.99 your price $16.99

BuyBuyPART NUM 876907
Sunlite Alloy Pillar Seatpost, 27, 350mm, Black, No Clamp
Sunlite Alloy Pillar Seatpost, 27, 350mm, Black, No ClampSunlite

Forged alloy construction Pillar style design Outer Diameter: 27.0mm Length: 350mm Color: Black Material: Alloy … read more

your price $15.99

BuyBuyPART NUM 484552
Thomson Elite Covert Dropper Seatpost: 30.9 x 400mm 125mm Travel
Thomson Elite Covert Dropper Seatpost: 30.9 x 400mm 125mm TravelThomson

Item Specifications Length: 400 Diameter: 30.9 Travel: 125 Clamp Style: Std Rails … read more

$150 offretail $479.95 your price $329.95 + ships free

BuyBuyPART NUM 213345
Cane Creek Thudbuster ST Suspension Seatpost - 27.2 x 345mm, 50mm, Black
Cane Creek Thudbuster ST Suspension Seatpost - 27.2 x 345mm, 50mm, BlackCane Creek

Building on Thudbuster's proven parallel linkage technology Cane Creek has completely re-designed the seatpost for increased durability, a higher rider … read more

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

your price $199.99 + ships free

BuyBuyPART NUM 953112
Redshift Sports ShockStop Suspension Seatpost, 31.6 X 400 Black
Redshift Sports ShockStop Suspension Seatpost, 31.6 X 400 Black

Ultra responsive suspension seatpost provides 35mm of bump eating comfort Minimal, subtle design blends seamlessly with the aesthetic of … read more

your price $229.99 + ships free

BuyBuyPART NUM 800582
SR Suntour NCX Suspension Seatpost: 27.2 x 350mm, 50mm Travel, Black
SR Suntour NCX Suspension Seatpost: 27.2 x 350mm, 50mm Travel, Black

A suspension seatpost that offers a coil spring with adjustable preload intended for city/comfort riding. Brass pivot bushings Alloy construction … read more

your price $151.99 + ships free

BuyBuyPART NUM 834012
Cane Creek Thudbuster ST G4 Suspension Seatpost - 31.6 x 375mm, 50mm, Black
Cane Creek Thudbuster ST G4 Suspension Seatpost - 31.6 x 375mm, 50mm, BlackCane Creek

Building on Thudbuster's proven parallel linkage technology Cane Creek has completely re-designed the seatpost for increased durability, a higher rider … read more

StarStarStarStarStar 4 of 5 ( 1 ) 4 of 5 stars ( 1 review )

your price $199.99 + ships free

BuyBuyPART NUM 290307
Paul Component Engineering Tall and Handsome Seatpost 27.2mm Black
Paul Component Engineering Tall and Handsome Seatpost 27.2mm Black

Our new Tall & Handsome isn't the lightest seat post ever made, but we think it may be among the easiest to use and nicest looking. Like all PAUL components … read more

$15 offretail $205.00 your price $189.99 + ships free

BuyBuyPART NUM 897791
Thomson Elite Seatpost Black 27.2 mm x 330 mm
Thomson Elite Seatpost Black 27.2 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 other production … read more

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

your price $114.95 + ships free

BuyBuyPART NUM 633226
Thomson Elite Seatpost Black 27.2 mm x 250 mm
Thomson Elite Seatpost Black 27.2 mm x 250 mmThomson

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

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

your price $114.95 + ships free

BuyBuyPART NUM 693352
Thomson Elite Set Back Seatposts - Black - 27.2 x 410 mm
Thomson Elite Set Back Seatposts - Black - 27.2 x 410 mmThomson

The Elite Set Back Thomson Seatpost has a post and cradle which are machined from one piece of 7000 aluminum. Post and cradle are machined … read more

your price $114.95 + ships free

BuyBuyPART NUM 404104
Cane Creek

"The world's best choose Cane Creek. A key element of Cane Creek's mission is to support the sport of cycling, including racing, charitable activities and cycling advocacy. Cane Creek believes strongly in the power of bicycles and their potential to effect positive change in our society. To that end, Cane Creek supports athletes and teams whose purpose encompasses more than competitive racing, such as getting more people on bikes, improving or promoting a healthy lifestyle, and making our world better through the use of a bike."

See all Cane Creek

Ritchey

"Ritchey bicycle components have been raced to victory in some of the biggest cycling competitions in the world including the UCI World Championships, the Tour de France and the Olympics and it all began in a simple garage in Menlo Park, California with Tom Ritchey.'

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Thomson

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

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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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Dimension

Dimension makes quality components to repair or custom-fit the vast majority of bikes being ridden today, and provide the accessories that make them fun to ride.

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Salsa

"At Salsa, we believe a sense of adventure makes life better. The bicycle can be so much more than just a bike; it's a path to new places, new people, and amazing experiences."

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DT Swiss

Driven by the vision of becoming a worldwide known manufacturer of bicycle components, DT Swiss expanded its product range over the years. Today DT Swiss has established itself as a leading manufacturer of spokes, nipples, hubs, rims, complete wheels as well as suspension systems.

See all DT Swiss

Whisky Parts Co.

"Whisky Parts Co. makes high quality carbon components designed with unique features that help you do more with your bike and stand out from the rest. We believe that our work can help every rider find a new level of confidence and performance with our sturdy and lightweight forks, bars, rims and more. So whether you are building a new bike or upgrading one you already have, you'll find an uncommon attention to detail in every product we offer."

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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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Answer

Answer BMX makes BMX racing components.

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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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RockShox

"An icon in the mountain bike industry."

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Kind Shock

Kind Shock is an industry leader in suspension and dropper seat posts.

See all Kind Shock

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.

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.

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.

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.

Dropper posts have the ability to change heights. This has become a choice for mountain bike riders that prefer multiple riding positions.

Clearance items can save you big.

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.