📋 2018 Honda Accord Quick Specs
The 2018 Honda Accord ships from the factory in multiple tire sizes depending on trim and wheel package. Always check the door-jamb tire-and-loading sticker for the exact size, load index, speed rating, and inflation pressure that came on your specific vehicle.
🏭 OEM Tire Sizes by Trim
| Trim / Package | Tire Size | Load Idx | Speed | Cold PSI |
|---|
| LX (17") | 225/50R17 | 94 | V | 32 psi |
| Sport / EX-L (19") | 235/40R19 | 92 | V | 33 psi |
| Touring (19") | 235/40R19 | 92 | V | 33 psi |
💡 Reading the sizeExample: 275/65R18 116T. 275 = width in mm. 65 = sidewall as % of width. R18 = 18 inch wheel. 116 = load index (2756 lb per tire). T = speed rating (118 mph max).
🔁 Alternate Sizes That Fit
These sizes maintain stock revs-per-mile within roughly 3% (the threshold where speedometer, ABS, and traction control stay accurate). Always verify load index meets or exceeds OEM.
- 215/55R17
- 225/50R17
- 235/45R18
- 235/40R19
- 245/40R19
📈 Plus-Sizing Options
Plus sizing increases wheel diameter while keeping overall tire diameter the same. This preserves your speedometer accuracy and gearing but allows wider tread and a more aggressive look.
- Plus 1: 225/45R18 from 17" stock - smoother ride than stock 19"
- Plus 2: 245/35R20 aftermarket - aggressive but tire wear suffers
⚠ Watch the load indexIf you go below OEM load index, especially on trucks and SUVs, you risk a sidewall failure under load. Never drop more than 1–2 load index points from stock.
🔩 Wheel Specifications
| Bolt Pattern | 5x114.3mm |
| Offset | +50mm to +55mm |
| Center Bore | 64.1mm |
| Common Widths | 7.0J–8.0J |
Hub-centric rings are required if your aftermarket wheel has a larger center bore than 64.1mm. Lug-centric mounting causes vibration and uneven wear.
❓ Frequently Asked Questions
What is the stock tire size on a 2018 Honda Accord?
The factory tire size on a 2018 Honda Accord varies by trim. Base trims use 225/50R17, while higher trims may run up to 235/40R19. Check your door-jamb sticker for the exact size on your vehicle.
Can I put bigger tires on my 2018 Honda Accord without a lift?
Yes, within reason. Most 2018 Honda Accord trims accept one size larger without rubbing, especially if you stick close to stock overall diameter. Plus 1: 225/45R18 from 17" stock - smoother ride than stock 19"
What is the bolt pattern on a 2018 Honda Accord?
5x114.3mm. This determines what aftermarket wheels physically bolt up. Center bore is 64.1mm, which matters for centering the wheel on the hub.
What tire pressure should I run in my 2018 Honda Accord?
The recommended cold inflation pressure is on the door-jamb sticker, usually 32 psi for most trims of the 2018 Honda Accord. Check pressures cold (before driving) once a month.
Do I need to match speed rating exactly?
You should at minimum match the speed rating your manufacturer specified. Going to a lower speed rating can void some tire warranties and is not recommended for highway driving, especially on heavier vehicles.
Can I run all-terrain tires on a 2018 Honda Accord?
Yes. Many 2018 Honda Accord owners run all-terrains in OEM or one-size-up dimensions. Just confirm the load index meets the door-jamb spec and add a few psi if you go to LT-rated tires from P-metric.
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