TIPS

ABOUT COMPOUND

COMPUND FEATURE
D SERIES It is the all-around types which suit a wide range of surfaces.
Ｄ****R SERIES Mainly, it shows the grip power to be outstanding in at the high grip surface such as the circuit.
G SERIES Get good grip power which is excellent at the oil surface and the carpet and so on.





ABOUT HARDNESS OF TIRE

HARDNESS GRIP DURABILITY RATE OF TEMP
SOFT
↑
NOTE１
↓
HARD		 STRONG
↑

↓
WEAK		 SHORT
↑

↓
LONG		 BIG
↑
NOTE 2
↓
SMALL

NOTE １　The proper temperature
COMPOUND OPERATING TEMP（SURFACE TEMP）
D20 　　-15゜C
D25 　5 - 30゜C
D30 15 - 35゜C
D35 25 - 45゜C
D40 40゜C -
The above is a standard. Actually, it changes with the use status of the dust or grip agent on the surface and so on and so on.

NOTE 2
On operation, 　temperature of tire will fluctuate. As the result, the the characteristic of the tire changes

1. Change to soft inner
2. It makes the hole of the wheel big or it increases.
3. Change soft wheel
4. Change hard tire
。





ABOUT INNER

FLAT SURFACE
HARDNESS GRIP OPERATION LIFE TIME RATE OF TEMP
SOFT
↑

↓
HARD		 WEAK
↑
NOTE 1
↓
STRONG		 MILD
↑

↓
HIGH RESPONCE		 LONG
↑

↓
SHORT		 SMALL
↑
NOTE 2
↓
BIG

NOTE 1
When the track condition is bumpy ( rough ), the grip of soft inner becomes stronger

NOTE 2
In to use soft inner, the lowering tire temperature rise can be prevented in the surface pressure of the tire and the surface.




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