Will getting bigger rims throw out my abs or speedo?

Question

Hi I have a Renault Clio Expression 2003, 1.2 16v. It currently has : R14/195 tyres.

I want to put on : 15,16 Or 17 inch rims, any advice as to the best one, and how much will it affect my car.

Thanks

Answer 1

First make sure the larger size will fit in the wheel well without affecting the fenders and suspension travel.

Next is to look at the tyres and see if a lower profile is available. So if your tyres are 195/75-14, you'll have go to a 195/65-15 or something along those lines. Basically if you just went larger the speedo would be out about 5km/hr per inch or more (reading low).

So using a lower profile tyre will be reducing the effect on the speedo and keep it more accurate. This will also have the effect of lowering your rpm for a given speed as well, but has the negative effect of using more fuel to get started from a stop (offset if you travel a distance or highway rather than through town).

So using a lower profile tyre will help offset speedo error it also means you have to slowdown for bumps and potholes etc. In the larger rim sizes you'll look for a 55 or 45 profile tyre. these have little rubber between the rim and the road and potholes can damage a rim if hit at speed (curbs can be downright destructive). The higher profile tyres are better for snow, mud and more cushioning (better ride).

Talk to a tyre installation garage for info and measure the tyres and rims and see what you like (and can afford).

Answer 2

As long as the height of the wheel/tire combination is not different from the previous set, then no adjustment is necessary. The overall height (diameter) is the what determines the amount of ground covered for each rotation of the tire (circumfrence). If you tire is taller than the circumfrence is longer and therefore you will cover more ground per tire rotation. If you tire is smaller than the circumfrence is shorter and therefore you will cover less ground per tire rotation. Here's how to deteremine if you need a speedo adjustment. Go to your local freeway or some location where you are able to know the specific distance in miles (or KM). Get up to speed and when you pass the marker for the beginning, look at your odometer. When you pass the second marker, check your odometer again. I have 3/4 FWD that I put 36" tires on. When I do this test, after going 10 miles, my speedo says only went 8 miles. This means that for every 10 miles I travel, I actually went 12. Thus for each 10mph increment of speed I must add 2 miles. Therefore if the speedo says I am going 60mph, my actual speed is 72. The math is as follows, current speed + (( Current speed / speedo check distance) * difference is speedo during check) or 60 + ((60 / 10) *2). As you can see the best distance to check is 10 miles. This also insures a more accurate reading. Good luck and I hope this helps.

Answer 3

the speedo will not give inaccurate reading when you have bigger RIMS if you have bigger tires thats a different story

abs has toi dop with the brakes

it has a sensor on each wheel it is called four channel abs

it has a speed sensor on the rotor when the rotor and wheel is spinning faster it sends a higher voltage to the abs module and controller when it is spinning slower it sends a lower voltage

when it senses a TOO sudden drop in voltage it relieves pressure in the brake system stoping your wheels from locking

so final answer is no it wont change anything

Answer 4

If you go with standard profile tires it can prove to be a night mare, in handling as well as calculating speed.
But if you go to the plus sizes (where the OD remains the same or close to the current tire size) many of the potential problems will be avoided.
But watch out on the offset, as there is a theoretical point where the front suspension is set up for the center of the tire.

Answer 5

Going to larger rim,s and staying with the same Diameter tire wont change much accept the ride. Hope you like a rough ride because the thinner tire will give you a very RROOUUGGHH Ride, their is nothing to absorb the road Condition,s, if it is possible ride with someone that has this configuration to see what you are facing, most of all ask your girl how she would like it

Answer 6

As long as all 4 tires are the same size then I'd say the ABS will work. The speedo will be off but if tou find out how much then you can compensate for it.

Answer 7

changing wheels will cause the speedo to change yes brake will be ok some what but it does cause more stress on them by adding bigger wheels makes the brake wear out faster... also adds stress to front end parts as well in other word it looks cool and fine but it does hurt the car

Answer 8

Check for clearance, etc. The speedometer is calibrated to the outside diameter for the original equipment tires. Changing that diameter will change the readings, and will change how the car handles, steers, rides, etc.

Answer 9

Any change in tire/rim height will cahnge the ABS, speed-o, and effect gas milage!! Don't know about the best of rims, I drive "only" jeeps!!

Answer 10

yes it will