I have a 2003 Mitsubishi Galant, a few months ago I put some 20in chrome rims on, (before I had 18s) but ever since I got them I feel like it‘s harder for me to come to a stop. It‘s not a huge difference but I feel it a little.With the 18s I never felt any type of lagging. Should I upgrade my brake system to handle the extra weight? Or do you think the car just can‘t handle the size rims I have? Or is this normal?
heavy rims and large tires increase rolling resistance, and require more effort to turn so yes they would need more braking effort to get stopped. You may want to consider a braking system upgrade to ffset the bigger wheels and tires. ( on another note. get your speedometer calibration checked.;larger tires can throw off your speedo by 5-10 mph or more, and I figure you'd rather hear about a ticket from some dork on a message board, than some guy with a badge.) enjoy your car.
Depends were you work some sites are more prone to FOD than others.
The mass of the tire and wheel assembly is a major factor in braking and suspension performance. The mass of the tire and wheel, and the brake assemblies is referd to a unsprung mass. As this rotating mass increases the force required to accelerate it or decelerate it increases in a squared relationship, meaning if the mass doubles it will take 4 times as much force to accelerate or decelerate it, if the mass triples it will require 9 times the force.
Is not the weight is the circumference of the rim. Usually if your vehicle is originally an 18 adding 2 more should not be much of a difference but I believe your vehicle is originally a 16 or 17 that means that you should change your brakes to match with the size of the wheels. Check the door of your vehicle it will tell you there the size of wheel recommended for your vehicle if the maximum size is exceeded you need to upgrade your brakes to a larger size. That said you should also remember that bigger brakes means harder take off for your vehicle so if you don't have the extra power to do it, might just be better to go back to 18's.
