But, boy, can you tell that they are there! Thumb the starter on the Heritage, and the engine spins quickly to life. If you’ve pulled the enrichener knob out even a little bit, the Twin Cam 88 finds a smooth, quick idle. Blip the throttle, and the revs rise much faster than engine speed ever increased on any Evo; thank the Twin Cammer’s lighter flywheels, which, on the Beta motor, even have slightly less inertia because of the lower, 50-percent balance factor allowed by the counterbalancers. But what astounds is how placid the bike remains at all times. Let the idle lug down below 1000 rpm, and nothing jumps or shakes. Blip it up to 3500, and nothing buzzes. The rear-view mirrors are so steady, you could shave in them while the engine is running and not end up with a faceful of razor nicks and missed stubble. Oh, you can feel the engine, but the smoothness, if you’re used to an Evo Softail, is almost eerie.