Can the original 700 tires be replaced with 750 ones?
2 Answers
The original 700 tires can be replaced with 750 ones. Changing from 700 to 750 tires can improve the vehicle's load-bearing performance. From a load-bearing perspective alone, it is more reasonable to use 700 tires for the front wheels and 750 tires for the rear wheels. However, attention should be paid to the rim model to see if it can accommodate 750 tires. If the rim cross-section is too narrow for 750 tires, it is best not to replace them. The rim specification codes are basically in line with international standards. 4.50Ex16 indicates a one-piece rim with a nominal width of 4.5 inches and a rim code of E. 6.5-20 represents a multi-piece flat-base wide rim with a nominal width of 6.5 inches and a nominal diameter of 20 inches. In use, the rim specifications of the car are very important. The international standard tire code expresses the section height and aspect ratio as a percentage in millimeters, followed by the tire type code, rim diameter (in inches), load index (allowable load mass code), and allowable vehicle speed code.
I've been driving for many years, and changing tires is not something to be taken lightly. If the original tires are 700 and you want to switch to 750, the increased diameter brings significant risks. The speedometer will become inaccurate, potentially showing a slower speed than you're actually traveling, which could lead to speeding tickets. The suspension and steering systems may also be overloaded, resulting in less responsive handling and longer braking distances—especially dangerous in wet conditions. There's also the risk of the tires rubbing against the wheel arches or frame, causing long-term damage. I once tried a minor modification and regretted it within two months—fuel consumption skyrocketed, and stability was compromised. If you really want to change tires, first check the specifications in the user manual and measure the vehicle's ground clearance. Don't cut corners—safety comes first. If you're still eager to modify, it's best to consult a mechanic to see if your vehicle can handle the change.
