The droop screws are steel and the chassis is aluminum. It doesn’t take long for the screws to gouge out and trash your chassis. Along with that its very hard to keep a constant droop setting. In true Race Fashion, Team FastEddy has addressed this issue with Steel Bump Stops that mount onto your chassis. Extremely light weight and durable you will no longer have to worry about changing droop settings or trashing your chassis and can concentrate on winning races.
[source: www.teamfasteddy.com]