Comparison of motorcycle steel and aluminum sprockets

Motorcycle sprockets are available in a variety of materials, but the two most common are steel and aluminum. Here’s a comparison of the two materials in terms of motorcycle sprocket applications:

Durability: Steel sprockets are more durable than aluminum ones. That’s why they are preferred for high-powered motorcycles and are more suitable for heavier tasks, such as riding over rough terrain. However, the difference in strength decreases as the number of teeth in a sprocket increases. This is because the number of teeth with which the chain is braided increases so the forces are distributed over more teeth. Our observations show that aluminum sprockets above 60t are almost as strong as steel ones. It should be noted that aluminum sprockets should be manufactured from 7075 T6 alloy.

Weight: aluminum sprockets are much lighter than steel ones, thus reducing the weight of the entire motorcycle. That’s why they are often used on sport and track motorcycles, where weight is important. Weight is also important in the case of large sprockets used in Stunt, as it is more difficult to stop a spinning mass of greater weight (a steel sprocket) compared to an aluminum sprocket. As the number of teeth increases, the weight difference between an aluminum and steel sprocket increases. This is well known to professional riders, who feel every pound when riding the front wheel.

Durability: steel sprockets are less prone to wear than aluminum ones. They can last longer and provide more stable and reliable performance. However, as we mentioned above, this difference disappears above 60t.

Appearance: milled and anodized aluminum gears are, in our opinion, nicer compared to powder-coated steel gears. In addition, aluminum is easier to do additional machining such as making chamfers, engravings or changing the thickness of individual pinion components.

Price: Aluminum sprockets tend to be more expensive than steel ones, due to the cost of the material and the manufacturing process.

In summary, steel sprockets are more robust and durable (in certain cases), but are heavier and less efficient than aluminum ones. Aluminum sprockets are lighter, but less strong and durable than steel ones. Ultimately, the choice depends on the rider’s preference and the application of the motorcycle.

It is worth remembering that Dixer Parts has been making rear sprockets since 2010 and we have made thousands of pieces. You are cordially invited to visit our store, where it is possible to make custom sprockets – in steel and aluminum, of course.