To access this, just turn on the gas, forget about the choke on a summer day but instead blip the throttle a couple of times to prime the big Keihins, thumb the starter button, and get ready for the Triumph to thunder to life and settle to a lumpy 900-rpm idle. Matt Capri's got the balance factor just right on the stroker crank because vibration remains minimal even when you wind the throttle wide open in pursuit of the 8,500-rpm rev limiter, accompanied by the trademark flat, angry drone of a traditional British twin. That stroker crank seems unbelievably free-spinning, with a perfectly dialed-in throttle pickup that's immediate but not jerky, as flat slides can sometimes be. Fueling wasn't totally ideal low down, and it'd hiccup slightly and display some transmission snatch if I accelerated hard below 3,500 revs. But that's the threshold to serious performance, for the Triumph motor's mega midrange torque delivers truly impressive acceleration, as the front wheel lightens in either of the bottom two gears while the tach readout on the ultra nifty, British-made Acewell digital dash scoots up to the 7,500-rpm mark and beyond with unmistakable purpose.