Alloy 15+ mm Bicycle Seatposts
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 57 products:
Sunlite Adjustable Suspension Seatpost, 25.4mm x 350mm, Silver
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5 of 5 stars
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BuyPART NUM 114147
Adjustable pre-load design Coil spring provides plush suspension Micro adjust seat clamp Outer Diameter: 25.4mm Length: … read more
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5 of 5 stars
( 1 review )
popularyour price $32.99
BuyPART NUM 114147 
Sunlite Adjustable Suspension Seatpost, 25.4mm x 350mm, Black
5 of 5
( 1 )
5 of 5 stars
( 1 review )
BuyPART NUM 391465
Adjustable pre-load design Coil spring provides plush suspension Micro adjust seat clamp Outer Diameter: 25.4mm Length: … read more
5 of 5
( 1 )
5 of 5 stars
( 1 review )
your price $31.99
BuyPART NUM 391465 
Kalloy SP-265 UNO Seatpost, 26.6 x 350mm, Sandblast Black BuyPART NUM 899366
Heat treated 6061 sandblast aluminum (matte finish) 2D forged 1-bolt head 30mm rail clamping area Item Specifications diameter: … read more
your price $19.99
BuyPART NUM 899366 
SR Suntour NCX Suspension Post, 31.6mm x 350mm, Black BuyPART NUM 209401
Brass bushing parallelogram suspension system 50mm travel Internal coil w/ preload adjustment Outer Diameter: 31.6mm Length: … read more
Ships Freeyour price $151.99 + ships free
BuyPART NUM 209401 
Sunlite Adjustable Suspension Seatpost, 27.2mm x 350mm, Silver BuyPART NUM 903633
Adjustable pre-load design Coil spring provides plush suspension Micro adjust seat clamp Outer Diameter: 27.2mm Length: … read more
your price $31.99
BuyPART NUM 903633 
Ritchey WCS MastTopper, 30.25x70mm 25 offset w/ 7x7 Clamp
BuyPART NUM 914853
For frames with integrated seat mast, different offset heads for tuning cockpit setup SideBinder 1-bolt fore/aft and tilt adjustable (7x7mm) … read more
your price $73.95 + ships free
BuyPART NUM 914853 
Origin8 Spire II Seatpost, 27.2 x 350mm, 15mm, Black BuyPART NUM 527769
3D forged one-piece AL6061-T6 construction Wide saddle clamp design reduces rail stress and flex Micro-adjust 2 bolt clamp design … read more
15% offretail $53.99 your price $45.89 + ships free
BuyPART NUM 527769 
Orign8 Spire II Seatpost, 31.6 x 350mm x 15mm, Black BuyPART NUM 489357
3D forged one-piece AL6061-T6 construction Wide saddle clamp design reduces rail stress and flex Micro-adjust 2 bolt clamp design … read more
15% offretail $53.99 your price $45.89
BuyPART NUM 489357 
Origin8 Spire II Seatpost, 30.9 x 350mm, 15mm, Black BuyPART NUM 319917
3D forged one-piece AL6061-T6 construction Wide saddle clamp design reduces rail stress and flex Micro-adjust 2 bolt clamp design … read more
15% offretail $53.99 your price $45.89 + ships free
BuyPART NUM 319917 
Reverse Comp Seatpost, 30.9 x 350mm, Black BuyPART NUM 883082
6061 aluminum seatpost for all-around use Two bolt, micro-adjustable head. 325g (27.2mm) Item Specifications diameter: 30.9mm length: … read more
your price $33.99 + ships free
BuyPART NUM 883082 
Sunlite Alloy Seatpost, 25.6, 350mm, Silver BuyPART NUM 656809
Forged alloy construction Integrated index adjust seat clamp Weight: 325g Outer Diameter: 25.6mm Length: 350mm Color: … read more
your price $19.99
BuyPART NUM 656809 
FSA Gossamer Seatpost, 27.2 x 350mm, 20mm, Black
BuyPART NUM 147147
AL6061 tube with forged alloy head 1-bolt NANO adjust saddle clamp for simple set-up Chromoly hardware Outer Diameter: 27.2mm … read more
your price $41.80
BuyPART NUM 147147 
Ritchey WCS MastTopper, 34.9x70, 25mm offset w/ 7x7 Clamp BuyPART NUM 909025
For frames with integrated seat mast, different offset heads for tuning cockpit setup SideBinder 1-bolt fore/aft and tilt adjustable (7x7mm) … read more
your price $73.95 + ships free
BuyPART NUM 909025 
KS ETEN Remote Dropper Post, 125mm, 31.6 x 445mm, Black BuyPART NUM 515543
External cable routing Alloy mast Black hard anodized stanchion Forged head with 20mm offset Black laser etched seal collard … read more
$11 offretail $119.00 your price $107.10 + ships free
BuyPART NUM 515543 
Pure Cycles Seat Post, 25.4mm x 350mm, Silver Seatpost BuyPART NUM 239655
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
BuyPART NUM 239655 
Reverse Comp Seatpost, 27.2 x 350mm, Black BuyPART NUM 763852
6061 aluminum seatpost for all-around use Two bolt, micro-adjustable head. 325g (27.2mm) Item Specifications diameter: 27.2mm length: … read more
your price $32.99 + ships free
BuyPART NUM 763852 
Full Speed Ahead Gossamer Seatpost, 31.6mm x 350mm, Black BuyPART NUM 463098
AL6061 tube with forged alloy head 1-bolt NANO adjust saddle clamp for simple set-up Chromoly hardware Outer Diameter: 31.6mm … read more
your price $41.80 + ships free
BuyPART NUM 463098 
Origin8 Spire I Seatpost, 31.6 x 350mm, 15mm, Black BuyPART NUM 693412
3D forged one-piece AL7050-T6 construction Wide saddle clamp design reduces rail stress and flex Micro-adjust 2 bolt clamp design … read more
15% offretail $75.99 your price $64.59 + ships free
BuyPART NUM 693412 
Black Ops Fluted Seatpost with Clamp, 27.2 x 350mm, Black BuyPART NUM 537052
Anodized silver clamp with an anodized and fluted grooved post Available in a variety of colors to match your style Outer Diameter: … read more
your price $26.99
BuyPART NUM 537052 
Black Ops Fluted Seatpost with Clamp, 27.2 x 350, Red BuyPART NUM 943689
Anodized silver clamp with an anodized and fluted grooved post Available in a variety of colors to match your style Outer Diameter: … read more
retail $26.99 your price $25.99
BuyPART NUM 943689 
"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!"
"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.'
"We move forward with a desire to deliver the best possible components to our customers and a determined spirit of competition."
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 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.
On a dropper post, this is the distance that the post will drop.
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.
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.