Join Date: Mar 2008
Location: New Castle, Indiana
They dont acually become untightened, but they do stretch causing them to be loose. Every time you hit a bump that causes the suspention to move up and down, the spokes take the pressure 1st. And the spokes go through being stretched and loosened as the wheel turns. The spokes on the bottom of the wheel at any given point carry no load, but the ones on the top of the wheel carry all the load on that wheel.