Me, V-twin sport bike, threshold braking involves a tiny tap on the rear (just from habit, really) as I also apply the fronts, then off the rear completely as soon as weight transfer to the front is nearly complete.
Wondering if all you folks who practice threshold braking on a regular basis actually practice it from the highest speeds you regularly ride. Anyone can do a nice, hard, progressive stop in a parking lot from 50 km/h. Hauling it down as hard as possible from 150 (or even 100) with the front tire howling and squirming and the rear lifting off the ground takes serious cohones.
Also, when you practice, do you *finish* the stop? i.e., come to a complete and total stop? Or do you let off at the last minute? The last bit could be pretty important if you are running up on the bumper of a stopped minivan, so best to practice it. Done properly, you can add more and more pressure to the lever until you are stopped completely, at which point the rear tire will come back to earth. On a sportbike on dry pavement, the rear brake has no useful involvement in any of this other than the initial 0.5 s or so. If you doubt this, you have never actually done it, so stop typing and go practice for real.
