The Kit includes a total of 150 kg of Black Rubber Bumper Plates, divided into two 5 kg plates (code 9040/1), two 10 kg plates (code 9042/1), two 15 kg plates (code 9043/1), two 20 kg plates (code 9044/1), and two 25 kg plates (code 9046/1). Black Rubber Bumper Plates are fully rubber weight plates, designed for weightlifting, powerlifting, and cross training, and therefore built to withstand repeated barbell drops to the floor (hence the name bumper, meaning shock absorber). To ensure evenly distributed support and a consistent bar height from the ground, all Bumper Plates are manufactured with the same external diameter, conventionally set at 45 cm according to various federation standards. Due to its mechanical properties, synthetic rubber is the most suitable material for this type of plate. The high-quality rubber—virtually odorless, with an excellent elastic coefficient and solid mechanical strength—guarantees exceptional durability even with the inclusion of the steel ring. The steel ring, which protects the central hole, is the most economical and widely used construction solution, though it has the downside of causing greater wear around the center of the plate over time. However, this is a minor drawback, as Black Rubber Bumper Plates successfully withstand over 20,000 drop tests. 150 kg Bumper Kit Contents: 2x code 9040/1 Bumper plate 5 kg – thickness 24 mm 2x code 9042/1 Bumper plate 10 kg – thickness 42 mm 2x code 9043/1 Bumper plate 15 kg – thickness 60 mm 2x code 9044/1 Bumper plate 20 kg – thickness 70 mm 2x code 9046/1 Bumper plate 25 kg – thickness 82 mm Weight tolerance: /-5%
