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United Kingdom, Belfast
1 Level
774 Review
47 Karma

Review on ProForm 66841 Valve Spring Combo by Sebastian Erik

Revainrating 2 out of 5

which is not easy. Maybe if you put in enough time to practice

You might think the design will hit the bottom when it hits the target height, but that's not the case. You should check the pressure reading once the base makes full contact with the vise jaw, or in my case full contact with the base of my arbor press. And you have to center the spring correctly, which is not easy. It's possible that with enough practice you can get a repeatable reading, but I've found this to be too difficult to play around with.

Pros
  • Excellent overall performance
Cons
  • Doubtful