there are few things that must be considered when choosing a wheel for your car. That is why understanding the characteristics of the various types of wheels and rims along with the various features of these items helps to guide the you in finding the suitable ones for your vehicle. The size of the rims directly affect how the vehicle performs when in motion. The material the rims are constructed from determines how well they will hold up to various driving conditions also. It is important to also know the proper measurements suitable for the vehicle when changing wheel and rim sizes to larger models. rims can be purchased at tyre centers, car dealerships or online.
Wheel and Rim Materials
The terms “wheel ”and “rim” are both used to refer to the metal center that is mounted to the axle of a vehicle and is used to support the tire. Wheels come in various materials which change the way the car can be used. Some materials are lightweight while others can stand up to heavy-duty use. This section of the guide covers various types of wheels and rims and what they are best suited for in regards to use. The table below is a list of the most common wheel materials that are on personal vehicles today.
TYPES OF MATERIALS USED IN MAKING RIMS AND THEIR DISADVANTAGES
Light wheels that are perfect for aesthetics and speed such as racing wheels, more resistant to corrosion than the steel counterpart
DISADVANTAGES;Not as durable as other wheels for use in rugged terrain, more prone to breaking or cracking when used in harsh conditions
Chrome
Chrome wheels have high polished shine, great for aesthetic appeal
DISADVANTAGES; Needs regular cleaning to keep lustre from fading
Steel
Typically steel wheels give vehicle lower center of gravity. Heavy and durable, this wheel is great for rugged terrain or snow
DISADVANTAGES; Lower cast ability for customization purposes than alloys; offers less speed than other models due to weight, also less appealing
Wire (Spoke)
Extremely light, wire wheels still give adequate vehicle support, multiple wires or spokes add aesthetic appeal
DISADVANTAGES; Takes longer to clean because of multiple wires or spokes than other wheel types
Terrain is an important factor to consider when it comes to getting rims that can handle that everyday wear and tear and yet still remain durable and long-lasting. One of the measures used to determine what rim is appropriate for a vehicle is to consider the primary terrain that the vehicle uses the most. For a vehicle that is primarily used for off-road pleasure, the wheels or rims should be selected based on that primary function. Heavy duty wheels and rims are not necessary for road travel because they can affect handling, reduce speed and the fuel economy of the vehicle.
Sizing for New Wheels and Rims;
The size of the rims also affects the performance of the vehicle. Wheels and rims that are either too large or too small can damage various components of the vehicle and affect such things as timing of the transmission, computer components, and it can even affect the overall control of the braking system. Wheels and rims that are too heavy for the vehicle can increase tire wear and fuel economy and give the vehicle a rough ride.
Taking Measurements
When choosing to upgrade rims to a larger size,one needs to know what size of rims the vehicle will allow because the size plays an important role in the overall handling performance of the vehicle. Not having the proper rims for the vehicle causes damage to the tyres which can be risky when traveling on bad road conditions. The rims must also be strong enough to support the weight of the vehicle and durable enough that they do not bend or crack under pressure from road hazards such as deep potholes.
FACTORS TO CONSIDER WHEN MEASURING FOR RIMS
Measure how wide the wheel is from left edge to right edge
Diameter
Measure how tall the wheel stands from top to bottom
Bolt Pattern
How many bolts; measure width of bolt circle with bolt circle gauge or use measuring tape and starting at edge of first bolt hole, measure to the center of the third bolt hole, skipping the second one
Backspace
Measure clearance of wheel from wheel well; easiest done by placing a straightedge diagonally along top back side of rim to inboard flange; then measure from contact point of inboard flange until hub mounting surface is reached
Offset
Measure distance from hub mounting surface to the wheel centerline to find either the positive or negative offset; positive offset has a hub-mounting surface that faces the wheel side of the wheel which is typical of front-wheel drive vehicles; negative offset faces brakeside of the wheel centerline and is typical of “deep dish” style wheels; zero offset has an even hub mounting surface with wheel centerline, by doing this you eliminate guess-work, also it helps to find wheels that cannot quarrel with brake calipers, or rims that will over-work your diffs and bearings etc
Finding the Rim Size on Tires
Among other things, a very important piece of information that a person needs to know when changing wheels is the size of wheels currently on the car, especially if they plan on sticking with the same size of tyre(see earlier post on how to determine tyre size