ULTRA
HIGH PERFORMANCE - SUMMER RACING TIRE PROXES
RA1
The
Toyo RA-1 is an Ultra High Performance Racing Tire developed
for the racer who wants professional racing performance at
street tire prices.
The
RA-1's UTQG tread wear rating of 100 indicates road adhesion
levels suitable for those applications where winning means
everything!
Additional
Features and Benefits:
Heavy-Duty
Bead Wire Construction
Stepped
Tread Design
Large
Block Tread Design
Steel
Wire Reinforced Sidewall
DOT
Approved
Best
Operating Temperature:
160°
to 220°F Higher
than 220°F the tire performance will start
to go off, although temperatures as high as 300°F
have been seen before blistering takes place.
Note: These
tires should not be stored below 0° Celsius
to prevent tread compound from craking.
Do not store inflated.
Camber:
Negative
2.5 to negative 5.0 deg. acceptable. Anything lower
than
2.5 or higher than 5.0 deg. negative will create some irregular
wear.
Castor:
As
much as possible (very difficult with stock vehicles).
Tire
Pressures :
Front
Drive
-
Start no less than 24 psi.
Rear
Drive
-
Start no less than 18 psi.
Goal
-
41 to 43 psi (hot)
Air
Pressures Recomendations:
Dry Conditions
Front Drive
- Starting minimum 24 psi.
Rear Drive
- Starting minimum 18 psi.
Goal
- 41 to 43 psi (hot)
Wet: (heavy
water layer)
Front Drive
- Starting minimum 28-30 psi.
Rear Drive
- Starting minimum 22-24 psi.
Front Drive
- Starting minimum 18-20 psi.
Rear Drive
- Starting minimum 12-14 psi.
Shaving
Requirements :
Wet
Grip
Grip
& Longevity
Ultimate
Grip
Full
Depth
4/32"
2-3/32"
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