The 2 Series stops were specifically designed for Quarter Midgets but can be used on any damper with a .375" shaft. The RSW line of bump stops produce a relatively linear curve. These are good, all-around bump stops that work very well at all race tracks. RSW stops are thermo set making them consistent with heat. Not recommended to run inside a cup.

• 1 Inch O.D.
• 0.375 Inch I.D.
• .500 Inch Height
• 40A Durometer
• Natural Color