They are made from steel and thin, you don't need to be a body builder to make small adjustments.
Equally it doesn't take much to bend them out of true, if you drop the wheel and it lands wrong or if you clip a tree stump or something then that will bend part of the disk enough to make it rub slightly.
Unless your running over built disks that weigh a ton.
Equally it doesn't take much to bend them out of true, if you drop the wheel and it lands wrong or if you clip a tree stump or something then that will bend part of the disk enough to make it rub slightly.
Unless your running over built disks that weigh a ton.