Light stem, handlebar, and seat post options for dream bike build

I’m building up a new road bike and looking for lightest options for internal cable routing stem and handlebar (not integrated) and 27.2mm seat post. This is a dream build project, so I’m not really focused on cost … at least not, yet. What would you get if you could, or what did you get?

Thanks in advance!

Brian

When I built my dream build, I wanted subtle of even absent branding. For a seat post, I also wanted a 2 bolt head so I could get the saddle angle just as I wanted it. I ended up getting a Roval Alpinist seat post. I dig it.

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Pogacar used their stuff at some point.

Impressively light, although I’m unsure whether I’d put my physical well being on the line to reach the limits of weight weenieness. However, they’ll build you a reinforced option (heavier) version upon request.

Make sure to post pictures when your project is complete!

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I’m around 185 lbs so the alpinist stuff is as light as I would ever go and would generally prefer stuff 1 tick heavier.

When I’m climbing something steep or hit a pothole I’m just putting a lot of force onto my contact points. Your mileage may vary.

The Roval Alpinist stuff is surprisingly robust. There are no absurdly low weight limits with them. I haven’t seen any real failures either. I used their first gen Alpinist bar/stem on my gravel bike for a couple years. I was slightly hesitant at first when going off of curbs or bunny hopping, but I soon forgot that I was riding such a light part and I started riding normally. For reference, I’m 5’10”, 200lb (trying to lose weight for the last two years ugh), and I descend like a madman

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At 70kg, I’ve ridden and raced with a 94g Darimo 300mm 0-setback (aero) seat post with no issues.