Proxes RA-1

A DOT-approved competition tire designed specifically for improved touring racing and autocross, features all the high-tech components to provide you with an uncommon competitive advantage. It's a proven winner.

TIRE PRICES ARE SUBJECT TO CHANGE WITHOUT NOTICE. PLEASE CALL TO VERIFY CURRENT PRICES. SOME SPECIALS MAY APPLY
CODE
TREAD
O.D.
SEC.
S.L.R.
REVS
RIM WIDTHS
PRICE
DEPTH
WIDTH
PER
INCHES
1/32"
MILE
185/60R13
236680
8
21.7"
7.5"
10.4"
1010
5.5
5.00-6.50
139
205/60R13
236700
8
22.6"
8.2"
10.8"
970
6
5.50-7.50
128
205/55R14
236870
8
22.9"
8.3"
11.0"
955
6.5
5.50-7.00
136
225/50R14
236900
8
22.9"
9.0"
11.0"
955
7
6.50-7.00
144
225/45R15
236970
8
22.9"
9.03"
10.6"
908
-
-
146
205/50R15
236840
8
23.0"
8.3"
10.6"
917
6.5
5.50-7.00
140/
225/50R15
236830
8
23.7"
9.1"
11.0"
886
7
6.00-8.00
151
205/55R16
236850
8
24.7"
8.3"
11.5"
853
6.5
5.50-7.00
188
225/50R16
236890
8
24.7"
9.1"
11.3"
853
7
6.00-8.00
191
P255/50R16
236880
8
25.8"
10.3"
11.8"
815
8
6.50-10.0
199
245/45R16
236800
8
24.4"
9.5"
11.2"
861
8
7.50-9.00
206
205/50R17
236740
8
23.8"
8.31"
11.7"
823
-
-
209
235/45R17
236820
8
25.2"
9.3"
11.7"
834
8
7.50-8.00
215
205/40R17
236750
8
23.4"
8.5"
11
887
7.5
7.00-8.00
193
235/40R17
236760
8
24.4"
9.6"
11.4"
852
8.5
8.00-9.00
200
255/40R17
236770
8
25.1"
10.4
11.7"
828
9
8.50-10.0
188
275/40R17
236780
8
25.6"
11.0"
11.9"
812
9.5
9.00-11.0
206
225/40R18
236790
8
25.1"
9.2"
11.8"
827
8
7.50-900
245
245/40R18
236690
8
25.4"
9.65"
12.0"
812
-
-
272
275/35ZR18
236710
8
25.6"
10.9"
12.0"
812
9.5
9.00-11.00
310
305/35ZR18
236730
8
26.3"
12.48"
12.2"
790
-
-
345
335/30ZR18
236720
8
25.9"
13.6"
12.1"
803
12
12.00-1300
380

Additional Features and Benefits:
*SPEC MIATA/SPEC E-30 SIZE
  • Heavy-Duty Bead Wire Construction
  • Stepped Tread Design
  • Large Block Tread Design
  • Steel Wire Reinforced Sidewall
  • DOT Approved
Best Operating Temperature:
160ºF to 220ºF
Higher than 220ºF the tire performance will start to go off, although temperatures as high as 300ºF have been seen before blistering takes place

Note: These tires should not be stored below 0º Celsius to prevent tread compound cracking.
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.

Caster:
As much as possible (very difficult with stock vehicles).

Tire Pressures:
Front Drive Starting no less than 24 psi.
Rear Drive Starting no less than 18 psi.
Goal 41 to 43 psi (hot)
Air Pressure Recommendations:
Dry Conditions:
Front Drive Starting minimum 24 PSI
Rear Drive Starting minimum 18 PSI
Goal 41 to 43 PSI
Wet: - (heavy water layer)
Front Drive Starting minimium 28-30 PSI
Rear Drive Starting minimum 22-24 PSI
Moist: - (no water layer)
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"
Note: The RA-1 has a stepped tread design depth and the outer grooves disappear at 3.5/32"

Tire Shaving Rates
13"-15" $15
16"-17" $20
18" $25
Add $5 for all tires shaved below 3/32"This covers the extra time and precision it takes to shave this thin