I noticed he same thing on my green WM bike, the seat is turning yellow. I actually have my bikes in a heated basement with very little sunlight. Cheap vinyl I suppose. Kind of a bummer though.Unchained said:I have a blue wal mart Krate, its a great bike for $80. I really don't like wal mart quality, but this has been a great bike- do keep the seats out of sunlight though, mine turned yellow really fast (kept indoors- heated garage) and is still yellowing.![]()