I'm about to buy a set of dumbbells.
I am choosing between Spinlock dumbbells:



I can't tell if there are advantages or disadvantages to each type outside of the price.
Could someone give a summary?
I'm about to buy a set of dumbbells.
I am choosing between Spinlock dumbbells:



I can't tell if there are advantages or disadvantages to each type outside of the price.
Could someone give a summary?
Pros and cons are pretty obvious, but I'd like to point out that both the York spinlocks and Cap spinlocks you linked to are essentially the same type of dumbbell. You've got two classes of dumbbells:
The pros and cons of non-adjustable dumbbells like the hex dumbbells you linked to are going to be the same whether the weight is rubberized, circular, hex, etc. However, with adjustable dumbbells you have three basic types: spinlocks, tool adjustable, and "dial-a-weight". The pros and cons are more varied between these.
First the pros and cons of adjustable vs. non-adjustable weights:
So, if economy is what you need--either space or overall cost--adjustable dumbbells may be the way to go. They are more cumbersome to use when you have to change weights during your routine, but that can be offset by getting enough handles/weights to support that. However, non-adjustable dumbbells are the most solidly built and the easiest to use. There's no moving parts. They just take up a lot of space, and a whole set will be very expensive.
Between the adjustable dumbbells, the pros and cons are more varied: