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View Full Version : Plastic/concrete weights vs. iron



9999
03-29-2006, 03:03 PM
If you are benching say 225 lbs with the plastic/concrete weights on a home gym, how would this compare to 225 at a real gym with iron weights? Would they be just as effective?

Anthony
03-29-2006, 03:13 PM
As long as they were both accurate, of course.

Sensei
03-29-2006, 03:13 PM
Yes - 225 pounds is 225 pounds. The only things that might make a difference is the diameter of the plates, or the way they rotate (or don't rotate) on the bar, or if the weight is somehow not distributed evenly throughout its mass (which, again, would probably affect its rotation on the bar).

Holto
03-29-2006, 03:58 PM
If anything the better balance with the OLY equiptment might help you lift more.

Buzzsaw
03-29-2006, 07:34 PM
What weighs more, a pound of feathers or a pound of sand?


A pound is a pound, right? Doesn't make any difference what your weights are made of.

Boson
03-30-2006, 08:09 PM
Buzzsaw's question is often answered incorrectly by kids. Here's another simple one adults sometimes get wrong: which reaches the ground faster, if dropped from the top of a tall building, a 5lb. dumbell or a 45lb. plate?

Hazerboy
03-30-2006, 08:13 PM
The one with the least air resistance.

hoser813
03-30-2006, 11:00 PM
at first i thought it was a trick question...

greathuskie
03-30-2006, 11:48 PM
Buzzsaw's question is often answered incorrectly by kids. Here's another simple one adults sometimes get wrong: which reaches the ground faster, if dropped from the top of a tall building, a 5lb. dumbell or a 45lb. plate?


what you should ask is a pencil or a bowling ball :)

Benji
03-31-2006, 03:39 AM
You sound like you are a believer that the plastic/concrete are somewhat lighter than cast iron, same weight is the same weight :D

Patz
03-31-2006, 09:55 AM
I can almost guarantee that if he can do 225 for 1 on the DP style weights, he wouldn't get it right away with the olympic. The plates are different to balance, the bar is thicker, it's knurled, etc. I have trouble just going to a different olympic bar at my gym. I actually go and get the one I'm accustomed to for all my pressing.

Burner27
03-31-2006, 10:10 AM
You guys are also forgetting humidity. While metal plates are not affected by humidity, concrete ones are. They absorb moisture and can be (not by much) heavier (or lighter) depending on the humidity.

thetopdog
03-31-2006, 12:48 PM
For some reason whenever I get back from school and go to the gym near my house, I can only bench about 10-15lbs less than what I'm used to doing at school. I hate working out at that gym at home

fat2fit
04-05-2006, 05:42 PM
Well in the uk at least most of the plastic weights ive seen are measured in pounds whereas olympic cast weights are measured in kg.

A 20kg olympic weight weighs 44lbs but for some reason people count them as 45lbs so 225lbs is really only 220lbs if your using an olympic bar with 4 20kg plates so you might be able to get an extra 5lbs on that bar ;) ;)

DannyboyXJ
04-06-2006, 11:29 AM
at first i thought it was a trick question...

hahaha; hit dem switches

hoser813
04-06-2006, 04:05 PM
hahaha; hit dem switches

WTF?!?! :scratch:

Goodwinm
04-06-2006, 04:13 PM
What weighs more, a pound of feathers or a pound of sand?


A pound is a pound, right? Doesn't make any difference what your weights are made of.i think that the better version of tht is.
what weighs more, a ton of feathers, or a ton of bricks.

hehe. catches people out.
Its like the one
"what do u put in a toaster"

the majority of people will say "toast" lol.

Deadlifter
04-06-2006, 06:14 PM
I can lift more with real dumbbells as opposed to the adjustable dumbbells I use at home. The adjustable dumbbels are huge because I have to manually load many little plates, so they are much bigger than true gym dumbbells, and also the plates rattle and move. The bigger the dumbbell, the harder it is to balance.

Chronic
04-08-2006, 12:18 AM
i think that the better version of tht is.
what weighs more, a ton of feathers, or a ton of bricks.

hehe. catches people out.
Its like the one
"what do u put in a toaster"

the majority of people will say "toast" lol.


That reminded me of something.... Do exactly what i say and answer the question I ask as quickly as possible (and sorry this is off the topic)

Say Silk 10 times real fast

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What do cows drink?
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wrong... cows drink water

Goodwinm
04-08-2006, 01:47 AM
That reminded me of something.... Do exactly what i say and answer the question I ask as quickly as possible (and sorry this is off the topic)

Say Silk 10 times real fast

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What do cows drink?
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wrong... cows drink water
lol! Hehe i always get acught out on that one. But i didnt then cuz i knew somebody wud post it hehe, however i nearly did say the other word.

toki
04-08-2006, 04:36 AM
cows don't drink milk when they are young?

ahhh degrees of truth.