Originally Posted by DropBarFan

Interesting question. I guess an avid rider will sweat out a lot of salt but still have enough salt in system to cause some 'bloating' ie excess water weight retention. Water is heavy so I'd guess perhaps a kilogram or more? Opinions on salt intake for cyclists, body-builders etc all over the map. But if I eat a high-salt dinner I see noticeable eye puffiness the next day which seems to indicate significant water retention.