Originally Posted by
tomato coupe
As per the assembly instructions for one of my bikes:
In other words, the minimum insertion for the frame may not be the same as the minimum insertion for the seat post, so you should choose the greater of the two to protect both the seat post and the frame. Depending on the details, the minimum insertion mark of the seat post may not protect the frame, or the minimum insertion of the frame may not protect the seat post.
I'm kind of surprised at the "if trimming is required" line in the instructions for your bike. How does one go about trimming a carbon fiber post without compromising the integrity of the layers? It it really just like metal? Maybe those instructions assume the post is not carbon? Is it necessarily inadvisable to take a hacksaw to a carbon post like you could aluminum?