MenuMenuModern Bike

30.9- mm 475.1+ 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.

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

SortSort

Showing 37 products:

OneUp Components Dropper Post, (180mm) 30.9x480mm
OneUp Components Dropper Post, (180mm) 30.9x480mm

New OneUp dropper line covers 100-210mm drops in 10mm increments Shortest overall length and stack height of any equal length dropper on … read more

$31 offretail $215.99 your price $184.99 + ships free

BuyBuyPART NUM 177602
RockShox Reverb AXS Dropper Seatpost - 30.9mm, 170mm, Black
RockShox Reverb AXS Dropper Seatpost - 30.9mm, 170mm, BlackRockShox

The RockShox Reverb AXS is optimized, motor driven, and paired with the next generation of electronic integration. It features Vent Valve Technology and … read more

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

$103 offretail $861.00 your price $757.68 + ships free

BuyBuyPART NUM 985982
Bike Yoke Revive Seatpost without Remote, 185mm, 30.9 x 484mm, Black
Bike Yoke Revive Seatpost without Remote, 185mm, 30.9 x 484mm, Black

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

your price $390.00 + ships free

BuyBuyPART NUM 582109
Tranz-X Kitsuma LT Dropper Post, 170mm, 30.9 x 494mm, Black
Tranz-X Kitsuma LT Dropper Post, 170mm, 30.9 x 494mm, Black

Internal cable routing Low maintenance sealed hydraulic cartridge and coil spring 7075 alloy construction and hard anodized 26mm stanchion … read more

your price $159.00 + ships free

BuyBuyPART NUM 745080
Tranz-X Kitsuma LT Dropper Post, 170mm, 30.9 x 494mm, Black
Tranz-X Kitsuma LT Dropper Post, 170mm, 30.9 x 494mm, Black

External cable routing Low maintenance sealed hydraulic cartridge and coil spring 7075 alloy construction and hard anodized 26mm stanchion … read more

your price $159.00 + ships free

BuyBuyPART NUM 966434
Tranz-X Kitsuma Air Dropper Post, 170mm, 30.9 x 495mm, Black
Tranz-X Kitsuma Air Dropper Post, 170mm, 30.9 x 495mm, Black

Internal Routing Lightweight alloy air cartridge adds rebound adjustment 7075 aluminum construction Upgraded internal bushings … read more

$17 offretail $185.00 your price $168.00 + ships free

BuyBuyPART NUM 219248
FOX Transfer Performance Dropper Seat Post - 30.9, 175 mm, Internal Routing, Anodized Upper
FOX Transfer Performance Dropper Seat Post - 30.9, 175 mm, Internal Routing, 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 894023
KS Rage-i Dropper Seatpost - 30.9mm, 190mm, Black
KS Rage-i Dropper Seatpost - 30.9mm, 190mm, Black

Rage-i is dropper performance at a never-before-seen value. Being our KS's entry-priced offering, Rage-i leaves nothing to compromise. Rage-i features … read more

$17 offretail $179.00 your price $161.10 + ships free

BuyBuyPART NUM 649029
KS Rage-i Dropper Seatpost - 30.9mm, 170mm, Black
KS Rage-i Dropper Seatpost - 30.9mm, 170mm, Black

Rage-i is dropper performance at a never-before-seen value. Being our KS's entry-priced offering, Rage-i leaves nothing to compromise. Rage-i features … read more

$16 offretail $169.00 your price $152.10 + ships free

BuyBuyPART NUM 191743
KS LEV Integra Dropper Seatpost, 200mm, 30.9 x 520mm, Black
KS LEV Integra Dropper Seatpost, 200mm, 30.9 x 520mm, Black

Internal cable routing with rotating actuator and reduced actuation force Precision machined alloy mast One piece 3D forged stanchion … read more

$39 offretail $399.00 your price $359.10 + ships free

BuyBuyPART NUM 245393
KS LEV Integra Dropper Seatpost - 30.9mm, 200mm, Black, Remote Not Included
KS LEV Integra Dropper Seatpost - 30.9mm, 200mm, Black, Remote Not Included

Using the proven Lev design, the Integra takes advantage of internal routing to provide a clean aesthetic on modern mountain bikes. Next level of integration … read more

$35 offretail $359.00 your price $323.10 + ships free

BuyBuyPART NUM 988399
KS LEV Integra Dropper Seatpost - 30.9mm, 175mm, Black, Remote Not Included
KS LEV Integra Dropper Seatpost - 30.9mm, 175mm, Black, Remote Not Included

Using the proven Lev design, the Integra takes advantage of internal routing to provide a clean aesthetic on modern mountain bikes. Next level of integration … read more

$32 offretail $329.00 your price $296.10 + ships free

BuyBuyPART NUM 329672
Kind Shock LEV Integra Dropper Seatpost 30.9 x 480mm, 175mm, No remote, Black
Kind Shock LEV Integra Dropper Seatpost 30.9 x 480mm, 175mm, No remote, BlackKind Shock

LEV INTEGRA'S internally routed cable significantly cleans up the look of your bike With shifter cables, brake lines and lock out cables … read more

$36 offretail $369.00 your price $332.10 + ships free

BuyBuyPART NUM 948691
Kind Shock LEV Ci Dropper Seatpost without Remote, 175mm, 30.9 x 490mm, Black
Kind Shock LEV Ci Dropper Seatpost without Remote, 175mm, 30.9 x 490mm, BlackKind 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

$51 offretail $519.00 your price $467.10 + ships free

BuyBuyPART NUM 193189
Crank Brothers Highline 7 Dropper Post, 170mm, 30.9 x 504mm, Black
Crank Brothers Highline 7 Dropper Post, 170mm, 30.9 x 504mm, Black

Premium alloy quill with additional machining for lighter weight; alloy mast Zero setback head, two-bolt fore/aft/tilt adjustment IFP … read more

your price $299.99 + ships free

BuyBuyPART NUM 591675
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
Crank Brothers Highline 11 Dropper Post 170 30.9 x 507mm - Black
Crank Brothers Highline 11 Dropper Post 170 30.9 x 507mm - Black

Carbon quill and alloy mast Zero setback carbon head with titanium bolts; , two-bolt fore/aft/tilt adjustme IFP cartridge for smoother actuation and … read more

your price $399.99 + ships free

BuyBuyPART NUM 536595
Bike Yoke Revive Seatpost without Remote, 213mm, 30.9 x 498mm, Black
Bike Yoke Revive Seatpost without Remote, 213mm, 30.9 x 498mm, Black

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

your price $380.00 + ships free

BuyBuyPART NUM 496200
Turnon Components Bunker Dropper Seatpost, No Remote (190) 30.9x513mm
Turnon Components Bunker Dropper Seatpost, No Remote (190) 30.9x513mm

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 $289.00 + ships free

BuyBuyPART NUM 341896
OneUp Components V3 Dropper Post, (240mm) 30.9 X 595mm
OneUp Components V3 Dropper Post, (240mm) 30.9 X 595mm

The lightest infinitely adjustable dropper post available Shortest total length of any dropper post (measured seat rails to end of actuator) … read more

$45 offretail $314.99 your price $269.99 + ships free

BuyBuyPART NUM 749395
RockShox

"An icon in the mountain bike industry."

See all RockShox

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

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.

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

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

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

Seatpost Material

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

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.