What is the difference between R16 and R18?

[MacJameson]

The following are the differences between R16 and R18 tires: 1. Different tire diameters: R16 is a 16-inch tire, approximately 406.4mm, while R18 is an 18-inch tire, approximately 457.2mm. 2. Different tire widths: The widths are different, one is 205 and the other is 215. The aspect ratios are also different, being 60 and 55 respectively. The wheel diameters are 16 and 18 inches respectively. 3. Different tire applications: The two tires are used on two different types of wheels. The 16-inch tire with a lower aspect ratio is more commonly used for family cars, while the latter is a 17-inch tire with a higher aspect ratio, suitable for some high-end cars.

[DiEleanor]

I found that the main difference between R16 and R18 lies in the wheel size. The most noticeable experience for me while driving is the comfort: R16 wheels are smaller with higher tire sidewalls, which absorb bumps better when driving over rough roads, making the ride feel much smoother, especially during city traffic jams where it doesn't shake uncomfortably. R18 wheels are larger, look cooler and more sporty, and offer more precise handling when turning, providing better stability on highways. However, the downside is that they tend to shake more and feel bumpier on rough roads. Additionally, the cost of replacing tires differs, with R18 usually being more expensive and also more fuel-consuming. The change in tire size affects noise levels, with R16 being quieter to drive. It's important to choose based on your driving habits. For someone like me who commutes daily, R16 is still the more suitable option.

[DelCarlos]

Having played with cars for years, R18 wheels with their larger size deliver a strong visual impact, especially on performance cars where they look domineering; the handling improvement is tangible, with quicker turn-in response and reduced body roll, giving you full confidence when driving on mountain roads or tracks. In comparison, R16 wheels are more ordinary but offer better comfort, making long-distance drives less tiring; the shorter tire sidewalls affect shock absorption. Cost-wise, R18 is more expensive, with more hassle in tire changes and maintenance, and possibly slightly increased fuel consumption. From a vehicle matching perspective, upgrading should consider the original specifications, or it may affect safety and balance. In short, for thrill and handling, R18 is the go-to choice, while R16 suits daily leisure driving.

[VanMaya]

I'm on a tight budget and found R16 tires to be much cheaper: switching to a set can save me hundreds, with lower maintenance costs and longer lifespan. R18 tires are more expensive and consume more fuel, especially increasing expenses on long trips. While R18 offers better handling, it doesn't make much difference for a steady driver like me; R16's comfort and shock absorption are more practical on rough roads. Tire size affects noise and safety, and choosing the wrong size increases the risk of malfunctions. It's advisable to check the vehicle manual before deciding on the size.