Supersprox 39-Tooth Rear Sprocket - Lightweight Aluminum Performance Gear #3693531 (License: Personal Use)

This Supersprox rear sprocket features a precision-machined 6061-T6 aluminum construction with aggressive weight-reducing cutouts and hardened teeth (H2 treatment) for extended wear. Marked with model number 451, tooth count 39, and “Made in PL,” it’s designed for high-performance motorcycles and off-road applications where strength-to-weight ratio matters. The central hub includes eight mounting holes for secure fitment on standard 520/525 chain systems.

Used on product pages for motorcycle drivetrain components, especially in aftermarket performance parts catalogs; targets riders seeking lightweight, durable sprockets for sport, supermoto, or enduro bikes. Matches user intent for replacement or upgrade parts with brand-specific compatibility.