One of the easiest ways to significantly change the appearance of a car is to replace the rims, for example, to be bigger.However, it should be understood that larger rims carry risks, including wasteful fuel.In general, larger rims are heavier and have a wider tread area.For example 17-inch diameter rims are 5 kg heavier than 15-inch rims, this means your car is 20 kg heavier than before because of the four new rims.Heavier load means it takes more engine power to move it which means it needs to use up more fuel.The large rim diameter also means that the friction area with the asphalt widens.This will affect the initial acceleration because it takes more engine power to turn the wheels than the small rims.The analogy is like riding a bicycle from a stationary position, it takes more power to pedal a bicycle whose rim size is larger than small.Head of the West Bekasi Auto2000 Workshop, Sapta Agung Nugraha, explained that another risk of rim replacement is greater.He said there would be changes to the control system and stability.The steering wheel is also said to be getting heavier and will affect the supporting components of the legs such as ball joints, tie rods, shock absorbers and wheel bearings."If the rim is bigger, it can automatically affect the braking system of the car. This means that braking will require different power, so it has the potential to cause a longer braking distance than usual," explained Sapta, quoted from the Auto2000 website.The manufacturer's decision to use certain rims as car standards has gone through research, one of which is for safety.Replacing the rim can not be done arbitrarily, you need to consult with an expert to understand the consequences and find solutions to overcome the risks.