The PBI Rear Sprocket is engineered from 7075‑T6 aluminum, a material that delivers tensile, yield, and shear strengths exceeding those of conventional steel sprockets. This high‑strength alloy also reduces unsprung mass, contributing to improved handling and ride quality.
The design incorporates strategically placed lightening holes on most rear models, further decreasing weight without compromising structural integrity. Constructed from full‑thickness aluminum, the sprocket achieves maximum strength while maintaining a lightweight profile.