Naww - don't get me wrong - it's a potentially really useful tip. I guess I just wanted anyone reading who might want to try it to know to check the sleeve occasionally to make sure that it's not holding any moisture in that area.
I myself recently fitted a 'sleeve' made from cut-up bits of old MTB tube to wrap around my lower headset race to hopefully prevent road spray/salt etc. from contaminating the grease there. Seems to be working fine up till now, and doesn't seem to tend to hold any moisture there after riding in the rain.
A tight-fitting sleeve could be fantastic at keeping nearly all rain/piss/sweat etc. from going down the seat-tube, but could still hold a small (only has to be a layer not many microns thick) amount in place that wouldn't evaporate for a *long* time, and be enough to start corrosion.
Originally Posted by
pursuance
If we look hard enough, we will find fly poop in the pepper.
PS - I like that expression.