A range of alloy wheels are now available to fit almost any car, truck or motorcycle. The wheels are normally manufactured from an alloy of aluminum, or an alloy of magnesium, or quite often, a combination of both of these metals. This makes the wheel lighter but just as strong. These metals also conduct heat more efficiently and they look good too.
Road handling can be improved through the use of lighter wheels as this reduces the unsprung mass of the vehicle keeping the suspension closer to the road which improves the grip provided by the tires. It should be pointed out that some alloy wheels may be heavier than steel pressings. Reducing the weight of a vehicle overall may also bring down fuel consumption.
The performance of the braking system can be greatly improved by the efficient removal of heat through the metal alloy composition under difficult driving situations. This, in turn, will reduce the possibility of the brakes failing because they overheat.
Besides having an attractive appearance, the alloys used in the manufacture of the wheels are largely resistant to corrosion which means that they can be used with their natural metal finish and do not have to be painted or be fitted with covers. More intricate patterns can be utilized in the design. This is in stark contrast to pressed sheet steel wheels which are usually welded together with the welds clearly visible and which have to be painted and covered with hub caps to make them more aesthetically pleasing.
Because an alloy is a combination of two or more different metals, it is often subjected to galvanic corrosion where the metals react with one another under certain conditions. If not cared for, this may cause air to leak from the tires. When damaged, repairing the alloys may be difficult, but because they cost more, repairing them may prove to be cheaper than replacing them, even if they are badly damaged. This, of course, will depend how the owner feels.
Being more expensive than steel, the alloy wheels are not usually included as standard fittings on a new vehicle, but are supplied as optional extras. However due to their increased popularity, more and more economy types of vehicle are now fitting them. Larger, more expensive vehicles have been fitting them for some time now with the larger sizes being particularly popular.
Unfortunately, because they are so valuable, they have been targeted by thieves and this has forced many manufacturers to supply wheel nuts that can be locked which, in turn, requires that a key be carried in order to unlock them. The majority of alloy wheels are cast, but many are forged. The forged wheels tend to be stronger and lighter than the cast type but they are also more expensive.
Wheels made from magnesium alloy, often referred to as mags, are often fitted to racing cars in an attempt to improve the vehicles performance. Some aluminum wheels are mistakenly referred to as mags. A number of motorcycle wheels are cast from magnesium disks.
Related Articles
No user responded in this post