I think their site is wrong. I saw this. It also gives the rotor size - 11.81" Rotors. Wheel size appears to be the same as '07.
2008 Harley-Davidson Road King CVO
Engine
Air-cooled V-twin, 2 valves per cylinder
Displacement
110 cubic inches (1,800cc)
Bore x stroke
4.0 inches x 4.38 inches
Carburetion
Electronic Sequential Port Fuel Injection
Compression ratio
9.3:1
Transmission
Six-speed
Final drive
Belt
Tires
130/70-18 front; 170/60-17 rear
Front brake
Dual 11.81-inch rotors,
four-piston Brembo calipers
Rear brake
Single 11.81-inch rotor
four-piston Brembo caliper
Seat height (unladen)
27.5 inches
Wheelbase
63 inches
Fuel capacity
6 gallons
Wet weight
786 pounds
MSRP
$29,290
$29,390 in California
Add $495 for 105th anniversary paint
Hoist!