The Chicago Extreme Bumper Plates are the most durable plates in the Body-Solid lineup; featuring superior durability in any facility with a quality smooth finish and classic black color. Every plate is made to the IWF standard diameter of 450mm (17.72”). The OBPX plates have a thinner width than the other Body Solid bumper plates allowing you to load more weight on the bar.
 
Features a 1 Year Commercial Warranty on 10lb and 15lb plates, and a 3 Year Commercial Warranty on 25lb, 35lb, and 45lb plates. 
 
Tech Specs:
Diameter 450mm (17.72”), IWF Standard
Collar Opening 50.8mm (2”)
Smooth Black Finish
1 Year Commercial Warranty for 10lb and 15lb
3 Year Commercial Warranty for 25lb, 35lb and 45lb
10lb Plate Width 1”
15lb Plate Width 1 ¼”
25lb Plate Width 1 7/8”
35lb Plate Width 2 3/8”
45lb Plate Width 2 7/8”