Proxes R888 Tech Specs: The following sizes are now available. The Toyo RA-1 will be phased out and eventually replaced by the new R888. By the end of 2008, all sizes of RA-1 are expected to be replaced by the R888.
General Proxes R888 Setup Guidelines:
Operating Temperature: 140°F to 220°F, optimum around 200°F
Hot Inflation Pressures: High 30's to Low 40's (psi)
Camber: -2.5° to -5.0°
Caster: As much as possible
Tire Size
Rim Width Range (inch)
Overall Diameter (inch)
Overall Width (inch)
Full-Depth Price
185/60R13V
5.0-5.5-6.5
21.6
7.4
$130
205/60R13V
5.5-6.0-7.5
22.6
8.2
$125
205/50ZR15W
5.5-6.5-7.5
23.0
8.5
$135
225/50ZR15W
6.0-7.0-8.0
23.7
9.1
$151
235/50ZR15W
6.5-7.5-8.5
24.2
9.6
$153
205/55ZR16W
5.5-6.5-7.5
24.7
8.4
$191
195/50ZR16W
5.5-6.0-7.0
23.5
7.9
$178
225/50ZR16W
6.0-7.0-8.0
24.7
9.3
$194
225/45ZR16W
7.0-7.5-8.5
23.8
9.0
$192
215/45ZR17W*
7.0-8.0
24.6
8.5
$202
225/45ZR17W*
7.0-7.5-8.5
25.0
9.1
$212
235/45ZR17W
7.5-8.0-9.0
25.3
9.5
$221
205/40ZR17W*
7.0-7.5-8.0
23.5
8.3
$197
235/40ZR17W
8.0-8.5-9.5
24.6
9.6
$202
255/40ZR17
8.5-9.0-10.0
25.1
10.4
$193
275/40ZR17W
9.0-9.5-11.0
25.7
11.0
$211
225/40ZR18Y*
7.5-8.0-9.0
25.1
8.8
$261
235/40ZR18Y
8.0-8.5-9.5
25.5
9.6
$273
245/40ZR18Y
8.0-8.5-9.5
25.7
9.8
$285
275/40ZR18W
9.0-9.5-11.0
26.7
11.0
$349
255/35ZR18Y*
8.5-9.0-10.0
25.1
10.2
$288
265/35ZR18Y*
9.0-9.5-10.5
25.4
10.8
$295
275/35ZR18Y*
9.0-9.5-11.0
25.7
11.0
$343
305/35ZR18
10.0-11.0-12.0
26.3
12.4
$377
285/30ZR18Y*
9.5-10.0-10.5
24.8
11.3
$348
295/30ZR18Y*
10.0-10.5-11.0
25.1
11.8
$348
315/30ZR18Y
10.5-11.0-11.5
25.5
12.5
$367
335/30ZR18Y
11.5-12.0-12.5
26.0
13.3
$422
235/35ZR19Y
8.0-8.5-9.5
25.7
9.5
$306
295/30R19Y*
10.0-10.5-11.0
26.0
11.7
$363
305/30ZR19Y*
10.5-11.0-11.5
26.5
12.0
$398
* Indicates reinforced. Bold designates measuring rim width. When a V, W or Y appears in the service description, maximum speed capability is as follows: V= 149mph, W= 168mph, Y= 186mph. Prices subject to change or correction without notice.
