This happened to the missus' bike not so long ago and none of the methods I've read worked, so I got a 7 foot long sash cramp (woodworking thing) and gripped it with that, and with an unpleasant cracking noise it came loose.
...the point being that it's good to get something with a fucking long lever, like wedge a broom handle under the saddle and then twist the bastard, or maybe turn the bike upside down, get a fat mate to stand on the saddle and then twist the rest of the bike.
This happened to the missus' bike not so long ago and none of the methods I've read worked, so I got a 7 foot long sash cramp (woodworking thing) and gripped it with that, and with an unpleasant cracking noise it came loose.
...the point being that it's good to get something with a fucking long lever, like wedge a broom handle under the saddle and then twist the bastard, or maybe turn the bike upside down, get a fat mate to stand on the saddle and then twist the rest of the bike.