Aluminum 415+ mm Bicycle Seatposts
Seatpost length is measured in millimeters. It is typically measured from the bottom of the post to the center of the rail mount.
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Showing 40 products:
Thomson Covert Dropper Seatpost, 150mm, 31.6 x 450mm, Black
BuyPART NUM 646771
Applying four decades of expertise, Thomson has set the bar with the Covert dropper Custom made Norglide bearing bushings and Trelleborg … read more
Ships Freeyour price $479.95 + ships free
BuyPART NUM 646771 
Crank Brothers Highline 3 Dropper Seatpost - 27.2, 125mm, Black BuyPART NUM 994764
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
BuyPART NUM 994764 
Tranz-X Kitsuma Air Dropper Seatpost, 150mm, 30.9 x 455mm, Black BuyPART NUM 576550
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
BuyPART NUM 576550 
Cirrus Kinekt Suspension Seatpost - Aluminum, 31.6, 420mm, XR- 180-320lb Rider, Black BuyPART NUM 906594
The Kinekt Active XR Aluminum Suspension Seatpost is sleek and versatile, providing 35mm travel with pre-load capability to effectively isolate your body … read more
your price $269.95 + ships free
BuyPART NUM 906594 
RaceFace Aeffect R Dropper Seatpost - 30.9 x 465mm, 170mm, Black BuyPART NUM 234584
Introducing the Aeffect R Dropper Post. Yes it's budget friendly and a rock solid option for riders wanting a simple, trouble-free dropper post - but … read more
your price $214.99 + ships free
BuyPART NUM 234584 
Gusset Lofty XXL Seatpost, 30.9 X 450mm - Black BuyPART NUM 150263
Extra long forged 6061 aluminum post allowing maximum height adjustment 2-bolt micro-adjust clamp. 345g (27.2mm) Item Specifications … read more
your price $39.95 + ships free
BuyPART NUM 150263 
Tranz-X Kitsuma LT Dropper Seatost, 150mm, 31.6 x 464mm, Black BuyPART NUM 721508
Interal 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
BuyPART NUM 721508 
RaceFace Aeffect R Dropper Seatpost - 31.6 x 425mm, 150mm, Black BuyPART NUM 446041
Introducing the Aeffect R Dropper Post. Yes it’s budget friendly and a rock solid option for riders wanting a simple, trouble-free dropper post – but … read more
your price $214.99 + ships free
BuyPART NUM 446041 
KS LEV Si Dropper Seatpost - 27.2mm, 120mm, Black BuyPART NUM 833949
Featuring a new keyway system to prevent free-play in the post, the LEV Si represents the latest incarnation of affordable premium dropper performance. … read more
$21 offretail $219.00 your price $197.10 + ships free
BuyPART NUM 833949 
KS LEV Si Dropper Seatpost - 27.2mm, 100mm, Black BuyPART NUM 781301
Featuring a new keyway system to prevent free-play in the post, the LEV Si represents the latest incarnation of affordable premium dropper performance. … read more
$21 offretail $219.00 your price $197.10 + ships free
BuyPART NUM 781301 
Kind Shock LEV-SI Dropper Seatpost without Remote, 150mm, 31.6 x 445mm, Black
BuyPART NUM 670404
At just half the price of premium models (including competitors), LEV-Si offers everything you need and nothing you don't Internal cable … read more
your price $179.99 + ships free
BuyPART NUM 670404 
Kind Shock LEV Integra, Dropper Seatpost without Remote, 175mm, 31.6 x 480mm, Black BuyPART NUM 592728
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
your price $324.99 + ships free
BuyPART NUM 592728 
Kind Shock LEV Integra Dropper Seatpost 30.9 x 480mm, 175mm, No remote, Black BuyPART NUM 948691
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
BuyPART NUM 948691 
Cirrus Kinekt Suspension Seatpost - Aluminum, 31.6, 420mm, LR- 80-180lb Rider, Black BuyPART NUM 321440
The Kinekt Active LR Aluminum Suspension Seatpost is sleek and versatile, providing 35mm travel with pre-load capability to effectively isolate your body … read more
your price $269.95 + ships free
BuyPART NUM 321440
Cirrus Kinekt Suspension Seatpost - Aluminum, 30.9, 420mm, XR- 180-320lb Rider, Black BuyPART NUM 969917
The Kinekt Active XR Aluminum Suspension Seatpost is sleek and versatile, providing 35mm travel with pre-load capability to effectively isolate your body … read more
your price $269.95 + ships free
BuyPART NUM 969917
Cirrus Kinekt Suspension Seatpost - Aluminum, 30.9, 420mm, LR- 80-180lb Rider, Black BuyPART NUM 875285
The Kinekt Active LR Aluminum Suspension Seatpost is sleek and versatile, providing 35mm travel with pre-load capability to effectively isolate your body … read more
your price $269.95 + ships free
BuyPART NUM 875285
Cirrus Kinekt Suspension Seatpost - Aluminum, 27.2, 420mm, XR- 180-320lb Rider, Black BuyPART NUM 551276
The Kinekt Active XR Aluminum Suspension Seatpost is sleek and versatile, providing 35mm travel with pre-load capability to effectively isolate your body … read more
your price $269.95 + ships free
BuyPART NUM 551276
Cirrus Kinekt Suspension Seatpost - Aluminum, 27.2, 420mm, LR- 80-180lb Rider, Black BuyPART NUM 242359
The Kinekt Active LR Aluminum Suspension Seatpost is sleek and versatile, providing 35mm travel with pre-load capability to effectively isolate your body … read more
your price $269.95 + ships free
BuyPART NUM 242359 
Kind Shock LEV Dropper Seatpost without Remote, 120mm, 27.2mm x 455mm, Black BuyPART NUM 448991
LEV has always represented the latest technology but is already a classic among top contending dropper posts <li With myriad of firsts to … read more
$36 offretail $369.00 your price $332.10 + ships free
BuyPART NUM 448991 
Redshift Sports ShockStop Suspension Seatpost, 31.6 X 450 Black BuyPART NUM 992840
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
BuyPART NUM 992840 
Thomson is leading with innovative design for two primary markets - aerospace and cycling.
We define color as the main color of the item. It may have accents or highlights in other colors.
Weight
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.
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
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.
Suspension seatposts are designed with comfort in mind.
Rigid seatposts are the most common type of seatpost with no suspension or dropping capability.
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.