Originally Posted by
JohnDThompson
Well, I can't argue with success.
But in a shop setting especially, why take a chance? The last thing you want to do is damage a customer's bike. I've been using the internal seat clamp since the steel frame days to avoid messing up paint and decals on seat tubes.
Seat posts are pretty robust, after all, they have to support a 200#+ rider.
I rather not remove the seat post, install the clamp and reinstall the seat post making sure it's exactly the correct height and x/y axis and not under/over torque the clamp.
I ride about 150 miles a week and every Sunday i clean the bike. That would be 120 times I've loosened and tightened the clamp. So far i've not even scratch the seat post.