How hard to brake to activate ABS

[BestStandard_imp]

But it should be easy to squeal the rear tire and I can't do it on my DLX. The ABS on the DLX doesn't have the linked brakes like the '13 ABS, it now uses the same front and rear calipers as the standard models. So doing a rear brake only panic stop should make some tire noise, especially with the stock tire. I know some complained early on that the rear brake on their DLX seemed week and they found they weren't bled properly. But my rear brake works as well as other bikes I've owned, and jamming just the rear brake pedal produces a smooth pulse free stop. I don't have a shop manual yet, does it shed any light on how the linked '13 and non-linked '14 systems are supposed to work?