HP Bumper Plates

High Performance (HP) Kiloflex black bumpers are designed improved composition to help prevent cracking and last longer.  HP will perform under extreme conditions and have an increased fatigue life.  They offer excellent cost performance by enhancing reliability.  HP bumpers have a standard 50.4 stainless steel insert and a reliable dead bounce that can be expected from all Kiloflex bumpers.  The 45lb plates have been designed to have a thinner width, allowing the athlete to load the barbell heavier.



  • 10lb 448mm
  • 15lb 448mm
  • 25lb 450mm
  • 35lb 450mm
  • 45lb 450mm

Collar opening - 50.4mm

Plate width 

  • 10lb 22mm (.866in)
  • 15lb 27mm (1.062in)
  • 25lb 40mm (1.574in)
  • 35lb 53mm (2.086in)
  • 45lb 72mm (2.834in)

Weight tolerance

  • 10lb +/-2%
  • 15lb +/-2%
  • 25lb +/-1%
  • 35lb +/-1%
  • 45lb +/-1%

Durometer rating  88