CP661 is much capable of braking and traction performance on dry and slippery roads as well as riding comfort.  
1)Shoulder pattern
To improve maneuverability and cornering performance.
2)Five differently-sized pattern blocks
Best array design and drainage performance to reduce noise
3)Transverse groove
Minimize tyre slipping at high-speed running
4)Four longitudinal grooves
Four longitudinal grooves are used for excellent drainage performance on rainy slippery roads. 
5)Central ribs that have continuous contact with roads
Central ribs that have continuous contact with roads can provide excellent maneuverability at high-speed running because drivers are offered with an ability to respond quickly.