WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information: https://www.p65warnings.ca.gov/
FAQS
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Should I get Hi-Temp Bumper Plates or iron plates?
Bumper plates are manufactured to withstand drops onto the floor, which is desirable for Olympic weightlifting (snatch, clean and jerk, hang cleans), where you often drop the plates onto the ground. Iron plates are better for lifts that do not involve the weights hitting the ground (such as bench press, squats, and curls), because they can cause damage to the floor, the barbell, and to the plates themselves.
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What is the diameter of the insert?
Hi-Temp Bumper Plates have a 2” Olympic-standard inner diameter and will fit 2” Olympic-sleeved barbells.
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Do I need to do anything when I first receive my Hi-Temp Bumper Plates? 
When bumper plates arrive, unpack and let them air out for a few days to allow any odor, however faint, to air out.
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What can I do to extend the life span of my Hi-Temp Bumper Plates?
To extend their life span, try to drop plates as close to straight down as possible. If your bar collars get loose during a workout, try to retighten them so your plates always land straight up and down. This will lessen the sideways force on the bumper plate insert. Also, flooring with some type of give (like heavy-duty rubber mats or a weightlifting platform) will help absorb some of the impact from dropping the plates.
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Can I load Hi-Temp Bumper Plates and iron plates on the same bar? 
We do not recommend this, because iron and bumper plates can have slightly different diameters, meaning all the force from dropping the weights goes into the larger plate, causing those plates and your barbell to wear more quickly. It is best to keep all plates on your bar the same type.