All-day road riders, gran fondo people, and anyone who found Madone/Émonda too low.
IsoSpeed endurance geometry: taller stack, longer wheelbase, and a rear end that takes the sting out of cobbles and chipseal. Still a road bike, not a Checkpoint.
New road riders and anyone who wants Specialized road geometry without carbon race numbers.
The endurance/entry alloy Specialized: taller and calmer than Allez Sprint. It is a first road bike and a winter beater, not a Tarmac.
Adventure and all-road riders who want more stability than the Grail race bike.
Slacker and more stable than the Grail, with room for bigger tires. Planted on rough doubletrack and less nervous at bikepacking pace.