Vortex 170ZR-39 VTX Aluminum Rear Sprocket 39T

The Vortex 170ZR-39 is a high-performance aluminum rear sprocket from Vortex Racing's VTX series, engineered for competitive and street riders who demand lightweight precision components. Machined from aircraft-grade 7075-T6 aluminum, this sprocket delivers a significant weight reduction over stock steel sprockets without sacrificing durability.

Key Features:

• Tooth Count: 39 teeth
• Material: Aircraft-grade 7075-T6 aluminum for maximum strength-to-weight ratio
• Hard anodized finish for increased surface hardness and corrosion resistance
• CNC machined to tight tolerances for precise chain engagement and smooth power delivery
• Lightweight design reduces unsprung and rotating mass for improved acceleration and handling response
• Part of Vortex Racing's VTX sprocket series, trusted by racers and performance street riders worldwide

The Vortex 170ZR-39 is a direct OEM replacement upgrade, offering a bolt-on installation with no modifications required. Paired with a quality O-ring or X-ring chain, this sprocket provides long service life even under demanding track and street conditions.