Hard compound spec tire designed to provide superb consistency and unparalled performance in the most demanding track conditions.
| Catalog Number: | 43818 |
| Size: | 240/640R18 |
| Transfer Color: | Gold |
| Sidewall Code: | GR Cup |
| Diameter (in): | 25.33 |
| Circumference (in): | 79.56 |
| Unloaded Radius (in): | 12.66 |
| Loaded Radius (in): | 12.14 |
| Load (lbs): | 700 |
| Tread Width (in): | 8.94 |
| Section Width (in): | 9.60 |
| Measure Rim: | 18x8 |
| Pressure (psi): | 20 |
| Weight (lbs): | 21.00 |
| Tread Wear Indicator (in): | 0.125 |
| Spring Rate (lbs/in) | 20 psi | 30 psi | ||
| 43818 240/640R18 Slick | 0° | 1000 lbs | 1415 | 1805 |
| 1250 lbs | 1486 | 1863 | ||
| 1500 lbs | 1560 | 1923 | ||
| 1.5° | 1000 lbs | 1368 | 1689 | |
| 1250 lbs | 1428 | 1740 | ||
| 1500 lbs | 1485 | 1792 | ||
| 3° | 1000 lbs | 1275 | 1595 | |
| 1250 lbs | 1341 | 1657 | ||
| 1500 lbs | 1405 | 1714 | ||
| 4° | 1000 lbs | 1263 | 1554 | |
| 1250 lbs | 1332 | 1623 | ||
| 1500 lbs | 1401 | 1686 | ||
| 240/640R18 GR Cup Slick | ||||
| Application | Circuit | |||
| Car Type | Toyota GR86 | |||
| Rim Specification | 18x8 | |||
| Minimum cold pressure | 20 psi | |||
| Starting (cold) Pressure | 20 psi | 22 psi | 24 psi | |
| Minimum Operating (hot) Pressure | 30 psi | 32 psi | 34 psi | |
| Maximum Camber | -4.0° | -4.5° | -5.0° | |