A Honda Civic rim size will depend upon the year and model of the vehicle. There is no true standard size rims for a Honda Civic, although various models do use a certain size of rims. For example, a 2006 Honda Civic SI uses 17 inch rims, whereas the same year Honda Civic EX model has 16 inch rims, and the base model Honda Civic from 2006 came standard with 15 inch rims. Generally speaking, the more luxurious the model of car, the larger the rims that the car will use. Determining the proper size rims for a Honda Civic will require knowing the year and model of the specific vehicle.