Vortex 841ZK-45 Rear Sprocket 45-Tooth for Marchesini and PVM Wheels

The Vortex 841ZK-45 is a high-performance 45-tooth rear sprocket engineered specifically for aftermarket wheels including Marchesini and PVM applications. This premium racing sprocket is manufactured in the USA from aerospace-grade aluminum alloy and features Vortex's patented tooth design for extended longevity and optimal power transfer.

Key Features:

• 100% CNC machined in the USA from specially formulated 7075 T6 billet aluminum
• Lightweight construction reduces rotating mass for improved acceleration and handling
• Black anodized finish with machined accents provides corrosion resistance and distinctive appearance
• Patented tooth design increases sprocket longevity and performance
• 5-bolt aftermarket pattern: 100mm bolt circle diameter, M10 bolt holes, 76mm hub diameter
• CAT5 aluminum racing construction for maximum strength-to-weight ratio

Designed for serious racers and performance enthusiasts, this sprocket delivers improved acceleration, deceleration, and directional changes while minimizing rotational weight. The precision CNC manufacturing ensures perfect tolerances and compatibility with Marchesini, PVM, and select other aftermarket wheels. Note: This sprocket will not fit most OEM wheels due to the specialized 5-bolt pattern.