What are the specifications for upgrading to 19-inch wheels on a Mercedes-Benz C-Class?

[SarahRose]

Data includes: Original AMG 19-inch wheels and tires for the Mercedes-Benz C63. Original 19-inch forged wheels for the C63 AMG + Michelin PSS racing tires. Wheel specifications: Front 245/35/19 8.5Jx19H2 ET38; Rear 265/35/19 9.5Jx19H2 ET56, standard tires, possible lowering of the chassis later. Changes after the upgrade: 19-inch wheels will be wider compared to the original ones, and of course, the tire noise will be louder. Another issue is that the larger the wheel, the thinner the tire sidewall. Overall, if the Mercedes-Benz C-Class is fitted with 19-inch wheels, it may be less practical. While 19-inch wheels look better, the front tires with a 40 aspect ratio and rear tires with a 35 aspect ratio will directly result in more concern when driving over potholes. On unstable road surfaces, the feedback to the driver will be much more pronounced. It will definitely be bumpier, and the tires will be more prone to bulging. Therefore, if you are considering upgrading to 19-inch wheels for your Mercedes-Benz C-Class, it is recommended to avoid frequently driving on bumpy roads and to replace the springs at the same time as the wheels.