The Pro Drag Radial is Mickey Thompson's radial drag slick, built on a stiff sidewall that resists distortion under launch load and a zero growth construction that holds diameter at speed so gear ratios stay predictable down track. Radial casing cuts rolling resistance against a bias slick, which is where the elapsed time comes from. The R1 compound sits between the softer L4 and the medium M5 on Mickey Thompson's compound chart and is aimed at heavier, high horsepower cars and automatic transmission combinations. This size runs a 29.7 in overall diameter and a 93 in rollout, with a 12.5 in section width and 9.0 in of tread on a 10.0 in measured rim.
Specifications
| Type | ET Drag Pro Drag Radial drag slick, radial construction |
| Size | 30.0/9.0R15 |
| Compound | R1 |
| Overall Diameter | 29.7 in |
| Rollout | 93 in |
| Section Width | 12.5 in |
| Tread Width | 9.0 in |
| Measured Rim Width | 10.0 in |
| Quantity | 1 (sold individually) |
| Part Number | 315021007 (also listed as 250821 and 90000038315) |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
