Originally Posted by
rpenmanparker
I'm completely satisfied with my Carbon-Ti expander that weighs 14 g. Support for the steerer seems to be fine. I still don't understand why you don't use a cap. How does a screw keep the water out?
If I reduce the height of my part down to 40mm from 60 to only support just the stem clamp area (which is more support than the Carbon-Ti unit offers) it would weigh 14 grams, too.
I don't use a cap because 1. I don't need one and 2. 4 grams is 4 grams and 3. I'm so vane that any benefits of using a cap are negated instantly by how ugly my stem area would look with the added height of a spacer and cap.
The screw/plug keeps water from getting down into the fork. Water can still collect in the depression in the top of my part. Had I originally planned to not use a cap I would have made that whole top surface flush, and will do so on any additional parts I produce.