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What is an alloy wheel?

The term alloy wheels is usually given to wheels ‘cast’ from a mixture of aluminum instead of steel, making the tyres light weight even though they’re usually larger in size than the factory fitted steel wheels.

They aluminum helps dissipating heat and small amounts of more rigid metals whose presence in the ‘mix’ provides rigidity and helps prevent cracks propagating.

What are the advantages of alloy wheels?

  • Aesthetic value ( beauty , elegance and a sporty look )
  • A variety of designs to choose according to ones taste.
  • Light weight ( hence low unsprung weight ) resulting in lower inertia being imparted to the springs while riding over a bump.
  • Lighter rotational mass improves acceleration , braking and fuel efficiency .
  • Better road holding ( tyre remains in contact with the running surface longer ).
  • Better braking ( wheel hop under traction is reduced ).
  • Longer tyre life because of better heat dissipation (alloy wheels are better conductor of heat) . Tyres fitted on alloy wheels are on an average 10% cooler than the normal rims particularly at high speeds . Cooler tyres wear out more slowly.
  • Reduced and even tyre wear because alloy wheel is invariable and perfectly true.
  • No corrosion or rust since special aluminium alloys are used .
  • Perfectly round and balanced hence no wobbling even at high speed.
  • Completely air tight hence perfectly suitable for modern tubeless tyres.
  • Enhanced cooling of disks and drums .
  • Less prone to bending and deformations , hence improved balance retention .
  • Superior rigidity improves cornering , lateral stability , better steering & handling .
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What does Offset mean ?

Offset is the distance between the hub mounting face at the back of the wheel and the wheel’s centreline. Offset is usually stamped or engraved into the wheel and is measured in millimetres of ‘ET’ [ET is the short form of the German word 'Einpresstiefe' which literally translates as 'insertion depth']

Positive Offset wheels have their mounting face toward the front face of the wheel. Most front wheel drive vehicles have positive ET wheels.

Zero offset wheels have their mounting face even with the centerline of the wheel and are by definition “ET 0″.

Negative Offset wheels have their mounting face toward the rear of the wheel – powerful rear-wheel drive cars often have wheels with negative offset.
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What does PCD mean?

PCD stands for ‘pitch circle diameter’ and is the diameter of a circle drawn through the centre of your wheel’s bolt holes. P.C.D. is measured in millimeters and also indicates the number of studs or bolts the wheel will have.

Are special tyres required for installing alloy wheels?

There is no requirement of special tyres to install alloy wheels. Standard tyres given by the car manufacturer are perfectly compatible with the wheels.

Is balancing and alignment necessary while installing alloy wheels?

Just like any other steel wheels, balancing is necessary while installing alloy wheels to strike a perfect balance between the tyres and wheels. This is necessary to avoid wobbling and uneven wear and tear.

Do you get common alloy wheels, which fit on all the cars?

No every car has different bolt pattern, but there are vehicles, which share a common bolt pattern for which common wheels are applicable and available.

What does Plus-Sizing or Up-Stepping mean?

Plus-Sizing or Up-Stepping are two terms given to the practice of increasing the diameter of your wheels whilst simultaneously reducing the profile of your tyres to keep the overall rolling radius the same. Plus sizing helps improve the handling of the car.
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What are alloy wheels locking nuts and locking bolts?

A set of locking wheel nuts or locking wheel bolts functions like a regular nut or bolt, but requires a special key tool for installation and removal. Locking wheel nuts & wheel bolts are designed to only be loosened when the appropriate key is used to turn them and therefore offer great protection from wheel and tyre theft. The simple installation of locking nuts or locking bolts makes them an easy way to secure your alloy wheels.

Care and maintenance of alloy wheels

In order to maintain the finish on your alloy wheels it is recommended that you use a mild soap with water based solution and clean with a soft un-abrasive cloth. Please do not use any kind of chemicals, household cleaners or detergents. Avoid using Aluminum polish on chrome, painted or clear coated wheels.