Vortex 170V4-43 V4 Aluminum Rear Sprocket 43-Tooth

The Vortex 170V4-43 is a high-performance aluminum rear sprocket featuring Vortex's newly introduced V4 design. Engineered for riders who demand maximum performance with minimum rotating mass, the V4 delivers a 10–15% weight reduction over the iconic CAT5 design without sacrificing structural integrity — making it an ideal upgrade for road racing, motocross, flat track, and drag racing applications.

Key Features:

• V4 design — Vortex's latest sprocket platform featuring a refined lightening pattern and machined faces on both sides for optimized strength-to-weight ratio
• 43 teeth — bolt-on tooth count for direct gearing customization
• 100% CNC machined in the USA from a specially formulated aluminum alloy to Vortex's exacting tolerances
• Lightweight aluminum construction — significantly reduces rotating mass compared to steel, improving acceleration, deceleration, and throttle response
• Unique tooth design increases sprocket longevity and chain engagement
• Clear anodized silver finish applied before cutting, creating the signature two-tone machined look while protecting against oxidation
• Stunt sprockets available up to 74 teeth through special order

Vortex aluminum sprockets are sensitive to chain cleanliness and tension. For best results, clean and tension the chain every 300–400 miles. Vortex Racing has been manufacturing precision motorcycle racing components in the USA for over 15 years, with proven results at the highest levels of professional racing worldwide.