The Nebula Pioneer 235/50ZR18 is a tire sold here as a set of 4. NEBULA Pioneer is the brand's ultra high performance passenger line, carried here in a wide spread of speed-rated ZR sizes for sixteen-, seventeen-, and eighteen-inch wheels — fitments you see on many sedans, coupes, and sport hatchbacks on the road today. Each size is sold as a single tire, a pair, or a full set of four, and every order ships free from our Orlando warehouse. Check the size moulded on your sidewall, match it to the specifications above, and order the count your car needs.
Specifications
| Size | 235/50ZR18 |
|---|---|
| Load Index / Speed Rating | 101W XL |
| Quantity | Set of 4 |
Key Features
- Ultra high performance line with speed-rated ZR construction across every size offered.
- Size coverage spans popular sixteen-, seventeen-, and eighteen-inch wheel fitments in one line.
- Sold as a single tire, a pair, or a full set of four.
- Free shipping from our Orlando warehouse to your door or your installer.
- Load index and speed rating for each size are listed in the specifications above.
What's in the Box
- 4 × Nebula Pioneer 235/50ZR18 tires
Typical Use Cases
- Replacing one damaged tire on a commuter sedan without buying a whole set.
- Putting a fresh matched pair on the same axle of a daily driver.
- Shipping a full set straight to your local shop for installation day.
FAQ
What does XL mean on some of these listings?
XL stands for extra load. An XL tire is built to carry more weight than a standard version of the same size, up to the load index shown in the specifications. Inflate to the pressure on your door placard, not the maximum printed on the sidewall.
Do these ship free, and where do they ship from?
Yes, shipping is free on every listing. Orders leave our warehouse in Orlando, Florida and go straight to the address you enter at checkout — your home, or your installer if you want the tires waiting there for your appointment.
Should I replace one tire, two, or all four?
If the rest of your set still has healthy, even tread, replacing one is fine. If two are worn, replace them as a pair and keep that pair on the same axle. Mixed tread depths change how a car grips, so a matched set of four is the safest setup.
Ships free from our Orlando, FL warehouse. Questions about fitment? Call (407) 821-7008 and we’ll check it for you.