Radial 18-inch
| TYRE SIZE |
RIM CHOICE |
RIM USED |
MEASURED AT |
DIAMETER |
SECTION |
TREAD |
REVOLUTIONS |
| psi |
bar |
ins |
mm |
ins |
mm |
ins |
mm |
mile |
km |
| 210/635 R18 |
7.0 – 8.0 |
8.3 |
20 |
1.4 |
25.2 |
640 |
9 |
229 |
8.25 |
210 |
800 |
497 |
| 225/635 R18 |
7.5 – 8.5 |
8.3 |
20 |
1.4 |
25.2 |
640 |
9.25 |
235 |
8.5 |
216 |
800 |
497 |
| 240/635 R18 |
8.5 – 9.5 |
9.0 |
20 |
1.4 |
25.2 |
640 |
9.9 |
251 |
9.25 |
235 |
800 |
497 |
| 255/635 R18 |
9.5 – 10.5 |
10.0 |
20 |
1.4 |
25.2 |
640 |
10.75 |
273 |
9.9 |
251 |
800 |
497 |
| 275/635 R18 |
10.5 – 11.5 |
11.0 |
20 |
1.4 |
25.2 |
640 |
11.6 |
295 |
10.5 |
267 |
800 |
497 |
| 225/640 R18 |
8.0 – 9.0 |
9.0 |
29 |
2 |
25.5 |
648 |
10.1 |
257 |
8.8 |
223 |
790 |
491 |
| 240/640 R18 |
9.0 -11.0 |
10.0 |
29 |
2 |
25.5 |
648 |
10.5 |
267 |
9.6 |
244 |
790 |
491 |
| 250/640 R18 |
10. – 11.0 |
10.0 |
29 |
2 |
25.5 |
648 |
10.9 |
278 |
9.8 |
250 |
790 |
491 |
| 275/645 R18 |
10.0 – 11.0 |
11.0 |
29 |
2 |
25.4 |
646 |
11.6 |
294 |
10.6 |
270 |
793 |
493 |
| 285/645 R18 |
11.0 – 12.0 |
11.0 |
29 |
2 |
25.5 |
647 |
11.7 |
297 |
10.9 |
278 |
792 |
492 |
| 300/645 R18 |
11.0 – 12.0 |
12.0 |
20 |
1.4 |
25.55 |
649 |
12.7 |
323 |
11.5 |
292 |
789 |
490 |
| 320/645 R18 |
11.5 – 13.0 |
13.0 |
20 |
1.4 |
25.55 |
649 |
13.7 |
348 |
12.5 |
318 |
789 |
490 |
| 335/645 R18 |
TBC |
|
|
|
|
|
|
|
|
|
|
|
| 255/660 R18 |
10.0 – 11.0 |
11.0 |
29 |
2 |
26 |
660 |
11 |
279 |
9.8 |
248 |
776 |
482 |
| 270/680 R18 |
10.0 – 12.0 |
11.0 |
20 |
1.4 |
26.9 |
683 |
11.75 |
298 |
10.3 |
262 |
750 |
466 |
| 285/680 R18 |
11.0 – 12.0 |
11.0 |
29 |
2 |
27 |
685 |
11.9 |
302 |
11 |
280 |
748 |
465 |
| 270/690 R18 |
10.5 – 11.5 |
11.0 |
20 |
1.4 |
27.15 |
690 |
11.9 |
302 |
10.5 |
267 |
743 |
462 |
| 320/690 R18 |
12.5 – 13.5 |
13.0 |
20 |
1.4 |
27.15 |
690 |
13.9 |
353 |
12.5 |
318 |
743 |
464 |
| 280/705 R18 |
10.0 – 12.0 |
11.0 |
29 |
2 |
27.8 |
706 |
12 |
304 |
10.6 |
270 |
726 |
451 |
| 300/705 R18 |
110.0 – 13.0 |
13.0 |
29 |
2 |
27.8 |
705 |
13.7 |
348 |
12 |
305 |
727 |
452 |
| 320/705 R18 |
12.5 – 13.5 |
13.0 |
29 |
2 |
27.8 |
706 |
13.9 |
353 |
12.6 |
320 |
726 |
451 |
| 365/720 R18 |
14.5 – 16.0 |
14.5 |
20 |
1.4 |
28.39 |
721 |
15.94 |
405 |
14.37 |
365 |
710 |
441 |
Avon Tyres Motorsport produces slick tyres in a variety of different compounds, with each compound aimed at a specific area of motorsport. This gives us the flexibility to provide highly tailored products to individuals needs. Below is a guide on compounds from hard to soft in descending order.
Note – Compound variant is only available in our slick tyre range
Remember – Softer compound does not always equal faster lap times
| Stiffness |
Compound |
Application |
| Hard |
A70 |
Ultra Hard compound for saloon car circuit slick applications. |
| |
A29 |
Very Hard compound for saloon car circuit slick applications. |
| |
A60 |
Medium compound for saloon car circuit slick applications. |
| |
A30 |
Medium compound for classic applications. |
| |
A37 |
Hard compound for sportscar, Soft compound for saloon car applications. |
| |
A56 |
Hard compound for sportscar / single seater circuit slick. |
| |
514 |
Medium / Hard compound for single seater and sportscar circuit slick. |
| |
A24 |
Medium compound for single seater, sportscar and sidecar circuit slick applications. |
| |
A11 |
Medium compound for single seater, sportscar and sidecar circuit slick applications. |
| |
A53 |
Soft compound for single seater and sidecar circuit slick applications. |
| |
A43 |
Hard compound for single seater circuit wet. Soft compound for sportscar. |
| |
379 |
Hard GT Hillclimb Compound |
| |
A49 |
Medium / Soft compound for rallycross, single seater circuit. |
| |
A50 |
Medium GT Hillclimb Compound. |
| |
A15 |
Very soft compound for hillclimb slick / wet single seater circuit and sidecar wet applications. |
| |
A92 |
Very soft compound for hillclimb slick / wet single seater circuit and sidecar wet applications. |
| Soft |
A45 |
Ultra soft compound for hillclimb slick / wet applications. Special Order Only |
