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.
SIZE
CODE
TREAD
O.D.
SEC.
S.L.R.
REVS
RIM WIDTHS
PRICE
DEPTH
WIDTH
PER
INCHES
1/32"
MILE
205/60R13
236700
8
22.6"
     8.2"
10.8"
970
6
0
5.50-7.50
$124
225/50R14
236900
8
22.9"
     9.0"
11.0"
955
7
0
6.50-7.00
$144
225/45R15
236970
8
22.9"
9.0"
10.6"
908
7.5
0
7.00-8.50
$147
205/50R15
236840
8
23.0"
8.3"
10.6"
917
6.5
0
5.50-7.00
$136
225/50R15 236830
8
23.7"
9.1"
11.0"
886
7
6.00-8.00
$153
225/50R16
236890
8
24.7"
9.1"
11.3"
853
7
0
6.00-8.00
$196
255/50R16
236880
8
25.8"
10.3"
11.8"
815
8
0
6.50-10.0
$204
245/45R16
236800
8
24.4"
9.5"
11.2"
861
8
0
7.50-9.00
$210
235/40R17
236760
8
24.4"
9.6"
11.4"
852
8.5
0
8.00-9.00
$196
255/40R17
236770
8
25.1"
10.4"
11.7"
828
9
0
8.50-10.0
$186
275/40R17
236780
8
25.6"

11.0"
11.9"
812
9.5
0
9.00-11.0
$204
275/35R18
236710
8
25.6"
10.9"
 12.0"
812
9.5
0
9.00-11.0
$344
                     
                     
Discontinued Sizes:
205/55R14
236870
8
22.9"
8.3"
11.0"
955
6.5
0
5.50-7.00
$143
205/55R16
236850
8
 24.7"
8.3"
11.5"
853
6.5
0
5.50-7.00
$182
205/50R17
235740
8
25.2"
8.3"
11.7"
823
6.5
0
5.50-7.50
$175
205/40R17
236750
8
23.4"
8.5"
11.0"
887
7.5
0
7.00-8.00
$162
225/40R18
236790
8
25.1"
9.2"
11.8"
827
8
0
7.50-9.00
$247
305/35ZR18
236730
8
26.3"
12.48"
12.2"
790
11.0
0
10.0-12.00
$300
335/30ZR18
236720
8
25.9"
13.6"
12.1"
803
12
0
12.00-1300
$335

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