ROTA GRID OFFROAD 2 18X8.5X6H/139 RL White

1. ROTA Grid Offroad 2: This denotes the brand and model of the wheel, suggesting it's an updated version or a specific variant of the ROTA Grid Offroad wheel series. These wheels are typically designed for off-road use and manufactured by ROTA.

2. 18x8.5: These numbers represent the dimensions of the wheel. "18" indicates the diameter of the wheel in inches, and "8.5" represents the width of the wheel in inches.

3. 6H/139: This part of the specification refers to the bolt pattern of the wheel. "6H" indicates that the wheel has a 6-lug bolt pattern, meaning it has six bolt holes. "139" denotes the bolt circle diameter in millimeters, which is the diameter of an imaginary circle drawn through the center of each bolt hole.

4. RL White: This describes the finish or color of the wheel. "RL" may suggest a round lip design, and "White" specifies the finish of the wheel, indicating it is a solid white color.

Therefore, the "ROTA Grid Offroad 2 18x8.5x6H/139 RL White" wheel is an 18-inch diameter, 8.5-inch wide wheel with a 6-lug bolt pattern and a bolt circle diameter of 139 millimeters. It features a round lip design and comes in a white finish. These specifications are crucial for ensuring compatibility and achieving the desired aesthetic for off-road vehicles.