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"seatposts" 30.9-

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 68 products:

Tranz-X Hot Lap Dropper Seatpost, 50mm, 30.9 x 400mm, Black
Tranz-X Hot Lap Dropper Seatpost, 50mm, 30.9 x 400mm, Black

Internal cable routing Suited for gravel, XC and CX Lightweight hydraulic cartridge Item Specifications travel/drop: … read more

your price $129.99 + ships free

BuyBuyPART NUM 272711
Kind Shock LEV Ci Dropper Seatpost, 30.9 x 390mm, 100mm, Black, No remote
Kind Shock LEV Ci Dropper Seatpost, 30.9 x 390mm, 100mm, Black, No remoteKind Shock

LEV CI takes rhythm from the trail and injects it straight into your soul 65-175 millimeters of perfect drop are just enough to turn your … read more

$80 offretail $429.99 your price $349.94 + ships free

BuyBuyPART NUM 764365
Bike Yoke Revive Seatpost With Triggy Remote (125) 30.9 x 397mm, Black
Bike Yoke Revive Seatpost With Triggy Remote (125) 30.9 x 397mm, Black

Self-serviceable dropper post with reset button at the head Non-IFP design provides better reliability and extremely smooth action … read more

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

$81 offretail $374.99 your price $293.94 + ships free

BuyBuyPART NUM 433261
Bike Yoke Divine SL Seatpost Without Remote, 100mm, 30.9 x 420mm, Black
Bike Yoke Divine SL Seatpost Without Remote, 100mm, 30.9 x 420mm, Black

Tailored to the needs of XC and marathon racers, the DIVINE SL is the youngest offspring of Bike Yoke dropper family. Based on the award-winning … read more

your price $320.00 + ships free

BuyBuyPART NUM 633493
Bike Yoke Divine Seatpost Without Remote, 185mm, 30.9 x 484mm, Black
Bike Yoke Divine Seatpost Without Remote, 185mm, 30.9 x 484mm, Black

Auto-reset function: post resets automatically with every full drop Travel adjust via 5mm "clip-in" spacers to reduce the maximum drop length … read more

your price $300.00 + ships free

BuyBuyPART NUM 720114
Bike Yoke Divine Seatpost Without Remote, 160mm, 30.9 x 467mm, Black
Bike Yoke Divine Seatpost Without Remote, 160mm, 30.9 x 467mm, Black

Auto-reset function: post resets automatically with every full drop Travel adjust via 5mm "clip-in" spacers to reduce the maximum drop length … read more

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

your price $270.00 + ships free

BuyBuyPART NUM 326408
X-Fusion Manic Dropper Seatpost - 30.9mm, 170mm, Black
X-Fusion Manic Dropper Seatpost - 30.9mm, 170mm, Black

The X-Fusion Manic post uses internal cable routing and was designed around a low-profile seat cradle and seal collar to fit a broad range of frames. … read more

your price $199.99 + ships free

BuyBuyPART NUM 232589
Whisky 7 Seatpost 30.9x400mm 0mm Offset Matte Carbon
Whisky 7 Seatpost 30.9x400mm 0mm Offset Matte CarbonWhisky Parts Co.

The No.7 seatposts are made from the highest quality materials to be durable, lightweight and comfortable. Whether you're remounting during the cross … read more

your price $105.00 + ships free

BuyBuyPART NUM 296374
U.S.E. Ultimate VYBE Hard Seatpost, 30.9 X 400mm
U.S.E. Ultimate VYBE Hard Seatpost, 30.9 X 400mm

50mm of active tunable travel VYBE features the DURO clamp Fully serviceable and adjustable for rider weight Medium for rider … read more

your price $165.00 + ships free

BuyBuyPART NUM 675579
U.S.E. Ultimate Alien Carbon Seatpost, 30.9 x 400mm, 3K Matte Carbon
U.S.E. Ultimate Alien Carbon Seatpost, 30.9 x 400mm, 3K Matte Carbon

Using a larger (3mm hex key) single bolt central to the clamp design, the Alien Cyclops makes adjustment easier and faster Intelligent design … read more

your price $125.00 + ships free

BuyBuyPART NUM 968398
Turnon Components Bunker Dropper Seatpost, No Remote (160) 30.9x445mm
Turnon Components Bunker Dropper Seatpost, No Remote (160) 30.9x445mm

Features a double air chamber design and high-performance wiper seals to create a water and dustproof system Provides a subtle amount of … read more

your price $269.00 + ships free

BuyBuyPART NUM 515340
Kalloy Uno 602 Seatpost, 30.9 x 350mm, Silver
Kalloy Uno 602 Seatpost, 30.9 x 350mm, Silver

Kalloy Uno 602 Seatpost, 30.9 x 350mm, Silver Item Specifications Color: Silver Length: 350 Diameter: 30.9 Clamp Style: Standard Rails … read more

10% offretail $19.99 your price $17.99

BuyBuyPART NUM 259034
Kalloy SP-265 UNO Seatpost, 30.9 x 350mm, Sandblast Black
Kalloy SP-265 UNO Seatpost, 30.9 x 350mm, Sandblast Black

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

your price $17.99

BuyBuyPART NUM 852896
Gusset MTB Pivotal Seatpost, 30.9 x 330mm, Black
Gusset MTB Pivotal Seatpost, 30.9 x 330mm, Black

A strong, lightweight alloy post, licensed from Pivotal BMX Inc Allows seat to be dropped lower than conventional posts 3D forged 7075 … read more

11% offretail $27.95 your price $25.00

BuyBuyPART NUM 975906
Full Speed Ahead Flowtron Adjustable Dropper Seatpost - 30.9 x 175mm, Black
Full Speed Ahead Flowtron Adjustable Dropper Seatpost - 30.9 x 175mm, Black

The Full Speed Ahead Flowtron seatpost is a "go anywhere, do anything" dropper post. Fully featured options and affordable price makes it the perfect … read more

$70 offretail $281.50 Ends 7/27! $211.12 + ships free

BuyBuyPART NUM 315040
FOX Transfer Performance Dropper Seatpost with Internal Routing, 30.9 x 200 mm, Anodized Upper
FOX Transfer Performance Dropper Seatpost with Internal Routing, 30.9 x 200 mm, Anodized Upper

The Transfer continues the excellent reputation of smooth function and great reliability with an infinitely adjustable height design, and internal or … read more

your price $309.00 + ships free

BuyBuyPART NUM 434728
Easton EA70 Seatpost, 30.9 x 400mm, Black
Easton EA70 Seatpost, 30.9 x 400mm, Black

Redesigned head on a Taperwall aluminum mast Accepts 7x7mm and 7x9mm rails Item Specifications diameter: 30.9mm length: 400mm setback: … read more

your price $69.99 + ships free

BuyBuyPART NUM 725673
Dimension Two-Bolt Seatpost 30.9 x 350 Matte Black
Dimension Two-Bolt Seatpost 30.9 x 350 Matte BlackDimension

Dimension Two-Bolt Seatposts provide a sturdy and durable saddle perch for cross country and all-mountain riding in three diameters, rigorously tested … read more

your price $28.00

BuyBuyPART NUM 546168
Crank Brothers Highline 3 Dropper Seatpost - 30.9, 170mm, Black
Crank Brothers Highline 3 Dropper Seatpost - 30.9, 170mm, Black

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

$19 offretail $199.00 your price $179.10 + ships free

BuyBuyPART NUM 671594
Kind Shock

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

See all Kind Shock

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."

See all Whisky Parts Co.

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.

See all Dimension

Thomson

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

See all Thomson

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

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."

See all Salsa

RockShox

"An icon in the mountain bike industry."

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

Weight

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.

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

Seatpost Clamp Style

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

Clearance items can save you big.

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.

Suspension seatposts are designed with comfort in mind.

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.