Specialized Carbon rails fit uncertainty

Discuss light weight issues concerning road bikes & parts.
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Posts: 80
Joined: Thu Oct 18, 2018 12:01 pm

by jencvo

I recently bought a gravel bike that came with Specialized Phenom Expert saddle in 143mm. I've been using Fizik Antares R3 on my road bike but after having a mind-blowing experience with the Phenom, I'm thinking about buying it for my road bike as well. Specialized's low level comp and expert are quite heavy so I was looking at Pro or S-Works models. Specialized website says however that "Oversized 7x9mm carbon rails are not compatible with seatposts equipped with side-load clamp mechanisms for 7mm round rails." (https://www.specialized.com/us/en/pheno ... 234-130635). I'm not sure what to make of this. My seatpost is the same as the one in the attached photo. Do you reckon that would work?
Screen Shot 2018-12-17 at 7.46.29 PM.png

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Posts: 71
Joined: Thu Sep 25, 2014 6:11 pm

by mcw

For Specialized-Seatpost you need these Clamps: https://www.specialized.com/us/en/anodi ... 989-130890


For other Posts also Clamps for 7x9mm Rails.

by Weenie

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