Ecnerwal said:In article <[email hidden]>,
(PeteCresswell) said:My utility bike's frame is an old StumpJumper.
Probably pretty-good quality steel.
But it spends it's share of time outside, chained to
something-or-other with the saddle/seatpost removed.
Is it worth pouring something into that seat tube to coat it
against rust? Or will steel of that quality not be bothered?
I'd suggest a cap over the hole, if you can't manage a parking spot
under a roof. I do a some bike salvage, and extensive rust time can make
them pretty useless. Steel rusts - good steel, bad steel, if it's not
stainless steel, it rusts. Presumably the bottom bracket bearings are
getting irrigated whenever it rains in your seatpost hole, which won't
help them any, either.
Grease and/or wax can cut down on rust, but you want to avoid having
water collect inside the bike frame.
I'm reminded of some German flatware I bought a good while back. It was
marked:
TOWLE
18/8 Stainless
Germany
There was a piece of paper accompanying the set that specifically said
the meaning of "stainless" was literally that - it would still rust, but
less than something made of non-stainless steel.
Our experience with this fine German-made product is that, yes, it does
rust, and it takes a lot of hard scrubbing to get the rust off. Seems
to happen mostly to the knives, probably because the blades have flat
surfaces where we occasionally allow water to sit.
Intentionally letting water enter the inside of the frame is known as
"Frame-icide", and the penalties for this crime are severe!