enter image description hereI have v brakes with a stiff wire which you bend to adjust the release tension, as opposed to turning a screw. I love this system, it's such an instinctive way to adjust the tension. Anyone know what this system is called as the brake units are getting rusty (it's an old bike) and I'd like to replace them?
All but the cheapest V brake arms come with a spring tension adjustment screw. These screws push on the short end of the spring, but the springs are common to any V brake.
Models with adjustment screws still have the long arm of the spring alongside the caliper arm, it is still exposed and you can still bend it to make adjustments. So you could make do with your preferred method and take your pick of any quality brake you can find.
Turning the adjustment screw is a better way to do it, but there's nothing to stop you bending the spring on your own bike to achieve the same result.