How wide can 21555r17 tires be replaced with?
2 Answers
The maximum width that can be replaced is 225/50R17. Below is a detailed introduction to car tire specifications: 1. Specification model representation: Tires are important components of a car, and there are many specification models of tires, with different models suitable for different types of vehicles. The specification model identification is usually on the side of the tire, represented by a series of alphanumeric characters, corresponding to the tire's tread width, aspect ratio, type, rim size, load index, and speed rating. 2. Speed rating: Based on the different maximum speeds they can withstand, tire speed ratings can be divided into different grades from A to Z, with grade A further subdivided into eight different levels from A1 to A8. The further back the letter representing the tire speed rating is, the better the tire performance.
Haha, let me share some insights as a veteran driver with over 20 years of experience. For 215-width tires, the rim width is typically 6 to 7 inches, and upgrading to 225 or even 235-width tires should generally be fine, but pay attention to adjusting the aspect ratio. For example, the original 215/55R17 has a diameter of about 668 mm, while switching to 225/55R17 results in a diameter of 654 mm, a difference of around 2%, so the speedometer should still be accurate. I’ve tried 235-width tires on my old car—the grip improved, and cornering became more stable, though fuel consumption increased slightly, about half a liter more per 100 km. More importantly, check the rim compatibility and body clearance to avoid rubbing against the suspension or fenders, especially during sharp turns. It’s best to have a mechanic measure the actual clearance to prioritize safety. Remember, wider tires offer better traction in rainy conditions, but you’ll need to get used to slightly heavier steering in everyday driving.
