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30.9- mm 558+ 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.

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Showing 2 products:

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

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Tranz-X Kitsuma Air Dropper Post, 200mm, 30.9 x 558mm, Black
Tranz-X Kitsuma Air Dropper Post, 200mm, 30.9 x 558mm, Black

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

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your price $159.00 + ships free

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

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.

Weight

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

Seatpost Clamp Style

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

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.

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