11/20/2025: Dear Friends, I am currently in chemotherapy and unable to promptly answer emails or ship orders. I will do my best to take care of your needs, but hope you can be patient. Thank you all for your support.

U.S.E. Alien Seat Posts

U.S.E. seatposts on this page: Alien 27.2mm carbon | Alien 27.2mm Blue | Suspension Shokpost 26.8mm | Suspension post rebuild kit

We don't have an on-line shopping cart. If you see something that interests you or if you have a question, please call us at (503) 480-2001 or email: sscycleworks@comcast.net

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U.S.E Alien 27.2mm x 250mm carbon seat post.

We have this post in several configurations: with Two Bolts | One Bolt new | One bolt lightly used | Lightly used

152 grams!

U.S.E Alien 27.2mm x 250mm carbon seat post with two bolts. New, $180.00

Part# 44210

At 152 grams, this is one lightweight seatpost.

Front view

The side of the post

And the back of the post

Here is the two-bolt post in its original packaging.

U.S.E Alien 27.2mm x 250mm carbon seat post with one bolt. New, $180.00

Part# 44210-1B

Here's a look at the back of the post.

Another look at the front of the post

The side of the one-bolt post

Here's a close-up of the saddle clamp.

Another view of the saddle clamp

U.S.E Alien 27.2mm x 250mm carbon seat post with one bolt. Lightly used, $150.00

Part# 44210-LU-02

Side view

From the front

Side view of the saddle clamp

The back of the saddle clamp

Close-up of the front of the saddle clamp

The top of the saddle clamp parts

A close-up look at the shaft's carbon-fiber weave.

Here are the directions, which should be taken seriously, since the post is carbon fiber.

Here is the first set of fitting instructions for the one-bolt post

And the rest of the fitting instructions

U.S.E. Alien 27.2mm x 250 carbon seat post. Lightly used, 150.00/each

Part# 44210-LU-03

Here's the post. Gently used.

Side view of the saddle clamp

Front view

From behind

And from above.

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USE Alien 27.2mm blue seat post. Lightly used, $75.00/each

Here's the whole post.

Front of the saddle clamp.

Back of the saddle clamp.

Side view

From the other side.

It is used, so there are some scratches.

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USE Suspension Shokpost 26.8mm X 350mm. New, $150.00

Part# 41200

The post's underside

Close-up of the seat clamp and suspension

The other side of the saddle clamp and suspension

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USE suspension seat post rebuild kit. New, $20.00/each

Part# 41201

Service kit is compatible with all USE suspension seatposts, and comprises of:

• 2 x replacement bearings
• 2 x keys
• 2 x shim to fit keys of older posts
• 1 x o-ring
• 1 x washer
• 1 x teflon grease

New, in its factory packaging.

The back of the package

Here's what's in the kit.

Here are the directions.