I have the 20mm setback version, it has a nice looking sweep compared to other designs. This is well if not perfectly made. Light but I trust it not like some aliexpress post. Says alloy rails only, I used it on crmo rails, they're technically an alloy. Only issue for me is it looks to me a bit like an alloy post.

I want to change seatpost on my Tarmac SL4 to match the colour of the frame, Easy to install in frame and it looks great.

The seat post works perfectly. It looks sleeker and more well engineered than others. It looks Carbon Fiber which just screams light and lovely! But the greatest thing is no more ratchety clamp to fight to get the seat dialed. This seat post moves like butter and locks easy and rock solid! Other clamps just aren't in its class at all... I love it so far!

a s work carbon seat post that doesn't accept s work carbon saddle, can't get my head around it, very poor.

The clamping mechanism on this S-works seatpost is hard to describe in words - but easy to say that it works great. On the stock seatpost that came on my Tarmac, the saddle angle would gradually slip - I'd have to periodically reset it and tighten it. No issue with this S-works seatpost - wonderful clamp - that's what a seatpost is for.

I Have it in my epic with a carbon saddle, But I have the dude of compatibility for Saddle with aluminum rail (circular not oval).

We are a Family that enjoys their Specialized Components. We have several bikes; Allez, Amira, Epic and Epic HT, Langster, Roubaix, Tarmac, Transition. Older to 2020s, and they all have these Specialized Seatposts. The technology continues to only get better and better, as does the look of the components. We have never experienced any negative issues. The solution to any challenge is only a phone call away.

This came OEM on my Crux. Slipped from the beginning, resulting in the seat pointing skyward. Local bike shop torqued it a few times and still happens. Quite disappointed.

I replaced the stock alloy seatpost on my 2019 Allez (Specialized, please please please stop making the head tube the size of a redwood on these otherwise excellent bikes!) with this S-WORKS Carbon Seatpost with 20mm setback. I am massively impressed with the seatpost and will be purchasing another for my Diverge. Some highlights: • The difference in comfort is incredible - it's almost as big of a difference as fitting wider tires and running them at lower pressures. • It looks great. Fully matte black, discrete branding that is also black, and a nice shape. • The single bolt clamping mechanism is infinitely adjust able and easy to use and maintain. Much better than two bolt systems. • Combined with a Toupé Expert saddle, 232g were saved over the stock alloy post and stock Toupé Sport saddle.