Carbon rail assembly (Instructions)
Carbon rail assembly
Recommendations regarding the seat-post
1. it should allow correct saddle positioning. (fig.1)
![it should allow correct saddle positioning](https://www.sellesmp.com/pub/media/wysiwyg/layout-2022/carbon-rail-assembly-1.jpg)
2. it should not have sharp edges whith, by cutting, could compromise frame resistance. (fig.2)
![it should not have sharp edges whith, by cutting, could compromise frame resistance.](https://www.sellesmp.com/pub/media/wysiwyg/layout-2022/carbon-rail-assembly-2.jpg)
3. the jaws should have the same external surface shape as the saddle frame to correctly fit with a wide contact surface. (fig.3)
4. the contact area between the seat-post and the saddle frame should not be under 8cm2.
5. the jaws should connect with the saddle frame for a minimum length of 32mm. (fig.3)
![the jaws should have the same external surface shape as the saddle frame to correctly fit with a wide contact surface.](https://www.sellesmp.com/pub/media/wysiwyg/layout-2022/carbon-rail-assembly-3.jpg)
6. the coupling surfaces with the saddle frame should be symmetrical and parallel. (fig.4)
7. the jaws should not cause deformation or damage to the saddle frame.
![the coupling surfaces with the saddle frame should be symmetrical and parallel.](https://www.sellesmp.com/pub/media/wysiwyg/layout-2022/carbon-rail-assembly-4.jpg)
8. if a lateral clamp seat-post is used, we raccomend using jaws with a range and profile suited to house the carbon fiber saddle frame with 7,0x9,0mm. (fig.5)
![if a lateral clamp seat-post is used, we raccomend using jaws with a range and profile suited to house the carbon fiber saddle frame with 7,0x9,0mm.](https://www.sellesmp.com/pub/media/wysiwyg/layout-2022/carbon-rail-assembly-5.jpg)
For further informations, please refer to the seat-post manufacturer’s instructions.
Download Carbon Rail (CRB) - Recommendations regarding the seat-post Booklet