Aluminum

Aluminum is one of the most common frame materials because it is light and fairly affordable. Aluminum provides the rider with a very stiff ride. Aluminum frames have large diameter tubes that help improve strength and stiffness. This material is often used for unique frame shapes.

Positives:
* Light
* Stiff
* Inexpensive
* Rust-Proof

Negatives:
* Less Strength Than Steel
* Can Break Under Heavy Use
* Difficult To Repair
* Thin Walled Tubes Dent Easy