Is the impact significant when changing from 245 tires to 265?
3 Answers
Not significant, it does not affect acceleration. Here are the detailed explanations: 1. Tire pressure: Maintain tire pressure between 2.4-2.5. Before driving each day, walk around the car to visually check for any loss of air. It's best to have a tire pressure monitoring system to help monitor real-time tire pressure. If the car is not equipped with one, you can purchase an internal or external version from the home mall and install it. Inflate promptly if the tire pressure is too low. 2. Tire rotation: Tire rotation is also important. Follow the requirements to rotate the tires at 20,000-40,000 kilometers, and perform a four-wheel alignment and dynamic balance check to effectively avoid excessive wear on any single tire. 3. Wear level: Pay attention to the tread wear level. Tires should be replaced at 40,000-60,000 kilometers, especially when the tread wear is only 2mm, replace them as soon as possible.
From my 10 years of car enthusiast experience, let me talk about switching to wider tires. Going from 245 to 265 makes quite a difference. The most obvious change is the increased tire contact patch, which significantly improves cornering grip and reduces hydroplaning in wet conditions. However, the trade-off is definitely higher fuel consumption – wider tires have greater rolling resistance. My friend's SUV burned nearly 1L more per 100km after the switch. The steering also feels heavier, especially when maneuvering at low speeds. You'll need to check if your wheel's J-value can properly accommodate 265 tires – don't force ill-fitting tires or use spacers that might compromise safety. Road noise increases and comfort decreases too, with more noticeable vibrations on rough roads. So before modifying, it's best to consult someone who's actually tested this setup on the same vehicle model – don't just do it for looks.
This depends on the vehicle condition and personal needs. Switching to 265 tires mainly affects three aspects. Safety does improve with shorter braking distances and more stable lane changes at high speeds, but they're more prone to slipping on icy roads. Secondly, vehicle performance changes - the steering wheel becomes heavier and acceleration feels sluggish, especially noticeable in small-displacement cars. Also, pay attention to the change in tire outer diameter; a circumference difference within 3% is acceptable, beyond which it affects speedometer accuracy. When I modified my car from 245 to 265, the diameter increased by about 2cm, just at the threshold. Also consider whether it'll pass annual inspections, as some regions prohibit modifications that exceed standards.
