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Mickey Thompson | Street Comp | 255/45R18 | ultra-high-performance street radial | Extra Load (XL) | Sold individually
The Street Comp is an ultra-high-performance street radial for modern muscle and Pro Touring builds. Its asymmetric pattern and responsive casing aim for predictable cornering and steering feedback, with compound tuning for dry and wet road use. For 255/45R18, the listed overall diameter is 27.1 in. and the tread width is 9.1 in.; these measured figures help compare fender clearance and the actual working tread. It is approved for 8.0–10.0 in. wheel widths and a 8.5 in. measuring rim. The 10.1 in. section width describes the casing at its widest point, which is different from tread width.
| Marked tire size | 255/45R18 |
|---|---|
| Construction | Radial |
| Load designation | Extra Load (XL) |
| Service description | 103W |
| Sidewall | Black sidewall |
| Approved wheel width | 8.0–10.0 in. |
| Measuring rim width | 8.5 in. |
| Measured overall diameter | 27.1 in. |
| Section width | 10.1 in. |
| Tread width | 9.1 in. |
| Tread depth | 10.0/32 in. |
| Approximate manufacturer tire weight | 30 lb |
| Supplier-listed maximum single load | 1,929 lb |
| Stamped maximum inflation | 50 psi (not a recommended driving pressure) |
| Manufacturer product code | 321018002 |
| Manufacturer material number | 248824 |
| Legacy part number | 6286 |
| Unit of sale | One tire; wheel and mounting not included |
Confirm wheel width, vehicle clearance and required load capacity before purchase. Tire size alone does not guarantee fitment to a particular vehicle or wheel. Sold individually. Quantity 1 purchases one tire.
