車呔前後厚度問題?

其實好多高性能後驅車嘅車呔, 前後嘅厚度比例都唔一樣嘅, 就好似BMW M6咁, 就用255/40-19, 後面用285/35-19. 而M3咁, 前245/40-18, 後面用265/40-18, 就後面係厚過前面 (245 x 40% < 265 X 40%)
不過你個case, 前後呔闊度一樣, 但後面厚過前面就特殊D. 要睇番你原廠呔嘅size係咩. 盡量保持+/- 唔好超過2.5%. 當你原廠係215/45-17, 直徑即係 21.5 x 45% x 2 + 17 x 2.54 = 19.35 + 43.18 = 62.53 cm; 215/50-17 = 21.5 x 50% x 2 + 17 x 2.54 = 21.5 + 43.18 = 64.68 cm. 比原裝多3.4%. 即係你揸車時, 表版話你行緊100km/h, 其實你係行緊103.4 km/h.

It should be ok, since everyone&#39;s driving is different. the level of wearout on each tire is different too. The biggest difference probably is depends on if your car is FF or FR.