Origin8 30.9- 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.
Contact Modern Bike via email, telephone, or showroom visit.
learn more
You may check the order status of a recent purchase to learn if it has been delayed, when it may ship, or if it has already been shipped.
check order status
Your Shopping Cart contains 0 products. View your cart to change product quantities, apply deal codes, or checkout.
Sort
Showing 8 products:
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
Ships Free15% offretail $53.99 your price $45.89 + ships free
BuyPART NUM 319917 
Origin8 Axys Carbon Seatpost, 30.9 x 350mm, 10mm, Black BuyPART NUM 146880
UD carbon shaft bonded to an AL6061-T6 alloy top clamp Wide saddle clamp design reduces rail stress and flex Micro-adjust 2 bolt clamp … read more
15% offretail $99.99 your price $84.99 + ships free
BuyPART NUM 146880 
Origin8 Axys Carbon Seatpost, 30.9 x 350mm, 0mm, Black BuyPART NUM 360074
UD carbon shaft bonded to an AL6061-T6 alloy top clamp Wide saddle clamp design reduces rail stress and flex Micro-adjust 2 bolt clamp … read more
15% offretail $99.99 your price $84.99 + ships free
BuyPART NUM 360074 
Origin8 Vertex Carbon Seatpost, 30.9 x 350mm, Black BuyPART NUM 658841
Full UD carbon shaft with alloy clamp Wide saddle clamp design reduces rail stress and flex Micro-adjust 2 bolt clamp design … read more
$33 offretail $219.99 your price $186.99 + ships free
BuyPART NUM 658841 
Origin8 Spire I Seatpost, 30.9 x 350mm, 15mm, Black BuyPART NUM 348317
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 348317 
Origin8 Pro-Fit Seatpost, 30.9 x 400mm, Silver BuyPART NUM 908611
Forged AL6061-T6 alloy construction Micro-adjust 2-bolt hinged clamp design Extra-long 400mm post 0mm setback Outer Diameter: … read more
13% offretail $34.39 your price $29.99
BuyPART NUM 908611 
Origin8 Pro-Fit Blk Series Seatpost, 30.9 x 400mm, Black 
Info
Forged 6061-T6 Aluminum construction Lower clamp and post forged as one solid piece to greatly improve strength Micro-adjust 2 bolt … read more
your price $51.99 + ships free
Info 
Origin8 Vertex Carbon Seatpost, 30.9 x 350mm, 15mm, Black Info
Full UD carbon shaft with alloy clamp Wide saddle clamp design reduces rail stress and flex Micro-adjust 2 bolt clamp design … read more
your price $149.99 + ships free
Info 
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.
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.
Rigid seatposts are the most common type of seatpost with no suspension or dropping capability.
Seatpost Clamp Style
Our Lowest Price - This product is ineligible for additional discounts or rebates.
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.