1
vote
1answer
170 views

Are there Common Dumbbell and Barbell Diameters?

I have some basic weights, dumbbells and a barbell. I've always assumed there were 30mm and 50mm diameters for weights, but when I measured my dumbbells they appear to be 25mm and my barbell is 30mm. ...
10
votes
2answers
500 views

Are there different muscular adaptations between barbell and dumbbell use?

Most exercises can be performed with similar weight and form using either a barbell or a pair of dumbells. I have heard that as people begin to lift heavier weights it becomes more difficult to ...
7
votes
3answers
463 views

Dumbbell Weights: Diameter vs Width

I wonder how to add more weight to a dumbbell. Adding more plates of fewer weight or fewer plates of higher weight? With bigger plates the diameter grows and so will the minimum distance the ...
4
votes
2answers
365 views

What are the ball bearings in dumbbells and barbells for?

Well the question title pretty much says it. While browsing the web for dumbbells I stumbled over the supposedly cheaper 30mm bars and the 50mm bars that all seem to be ball beared. What is the ...