Definition
The tradeoff is simple: steel is heavier and more durable, while aluminium is lighter and usually wears faster.
Knowledge base
Steel vs aluminium rear sprocket
Steel rear sprockets usually win on wear life and abuse tolerance. 7075-T6 aluminium rear sprockets usually win on weight and response.
Practical use
Steel suits fleets, enduro, rental, and harsh conditions. Aluminium suits race builds where lower rotating mass matters.
Material notes
Hard anodizing and tooth finish help, but they do not remove the underlying wear difference between the two materials.
Common mistakes
- Picking by weight only and ignoring replacement intervals.
- Using aluminium in a workload that really wants steel.
- Assuming the material choice fixes a fitment mismatch.
When to contact Langbiang Gravity
Contact the team if you want a material recommendation for a specific model, fleet duty cycle, or batch program.