Forged vs cast vs flow-formed alloy wheels
Three manufacturing methods, three price points. Here is what each one means for weight, strength and your budget.
Written by WheelStop's fitment team, cross-checked against Indian vehicle specs. Last updated .
How is a cast wheel made?
Molten aluminium alloy is poured into a mould and left to set. Casting is the most common and cheapest method, and it allows complex designs. Cast wheels are usually heavier than forged wheels to reach the same strength.
How is a forged wheel made?
A solid block of aluminium is pressed under very high pressure and then machined to shape. Forging aligns the metal grain, so a forged wheel can be stronger and lighter than a cast one. It is also the most expensive.
What is a flow-formed wheel?
Flow-forming starts with a cast wheel and then spins and presses the barrel to stretch and compress the metal. The barrel ends up thinner and stronger than plain casting, giving a lighter wheel at a price between cast and forged.
Which one should I buy?
Most daily cars are well served by good cast or flow-formed wheels. Forged wheels suit track use or buyers who want the lowest weight and will pay for it. Whatever the method, make sure the wheel has the right load rating for your car.
How can I tell which type a used wheel is?
Ask the seller for the maker and model, and check the markings stamped on the back. Forged wheels are normally marked as forged. If a seller cannot tell you, treat the claim as unverified.
Does a lighter wheel always mean a better wheel?
No. Weight is only one factor. A wheel must also have the right load rating, strength and fit for your car. A very light wheel that is not rated for your vehicle is a poor choice, so check the stamped load rating and buy from makers who publish their specifications.