What are the specifications for the Bora's 15-inch wheel hub?
3 Answers
15-inch wheel hub diameter is 38.1cm. Wheel hub material: Steel wheel hubs have good toughness but poor hardness, while aluminum alloy wheel hubs are the opposite, with good hardness but poor toughness. Due to manufacturing materials and processes, steel wheel hubs have poor stability at high speeds, whereas aluminum alloy wheel hubs perform very well in terms of stability at high speeds. Additionally, aluminum alloy wheel hubs excel in acceleration and heat dissipation. Wheel hub performance: Although aluminum alloy wheel hubs outperform steel wheel hubs in overall performance, their cost is relatively higher. Replacing a set of standard aluminum alloy wheel hubs can cost several thousand yuan. Moreover, the maintenance of aluminum alloy wheel hubs is more complicated compared to steel wheel hubs. Steel wheel hubs come with plastic hub covers. There are many attractive hub covers available on the market, and if matched appropriately, they can achieve a similar aesthetic effect as aluminum alloy wheel hubs.
Hey, as a car enthusiast, I'm quite familiar with the Volkswagen Bora. The common specifications for 15-inch wheels are: diameter of 15 inches, width of 6J (J represents the rim shape), offset of ET40-45 millimeters, bolt pattern of 5x100 (5 holes with a pitch of 100mm), and center bore of 57.1mm. These parameters directly affect the wheel's fitment. For instance, the ET value is kept between 40-45 to ensure the wheels don't protrude or retract too much from the body, avoiding friction with the suspension. The PCD 5x100 and center bore of 57.1mm perfectly match the vehicle's hub, reducing vibration risks at high speeds. When changing tires, remember to use the standard size of 195/65 R15 to ensure comfort. I once helped a friend choose aftermarket parts and found that incorrect data could cause noise or even danger. It's best to check the vehicle manual or consult an authorized dealer to confirm model year differences to avoid mistakes. Regularly inspecting these items during maintenance can save a lot of trouble.
As a seasoned driver with ten years of experience behind the wheel of a Bora, I have a practical understanding of 15-inch rims. The specifications are typically 15 inches in diameter, 6 inches in width, an offset of around ET40, 5 bolt holes with a 100mm pitch, and a center bore of approximately 57mm. Precise data ensures the rim fits securely, preventing tire imbalance or abnormal wear—otherwise, long-distance driving can be quite unnerving. Matching tires usually come in 195 width types. If the dimensions are off, such as an incorrect bolt pattern, you might feel steering wheel vibrations. I once replaced mine with an OEM part and tested it—the results were reliable. For daily use, sticking to standard parts is recommended over modifications; it’s worry-free, safe, and extends service life while reducing maintenance costs. If in doubt, always cross-check with the manual or have a professional shop take measurements. Never overlook small details that could impact overall driving performance.
