Shimano 600 AX Vintage Rear Derailleur – RD-7300 Aerodynamic 6-Speed Road Derailleur

Details:

• Brand / Model: Shimano 600 AX (RD-7300)

• Type: Short Cage Aerodynamic Rear Derailleur

• Mounting Standard: Standard Rear Dropout Hanger Mount

• Drivetrain Speed: 6 / 7-Speed Friction or AX Index Compatible

• Max Cog Capacity: 26T

• Aerodynamic Features: Enclosed Parallelogram Geometry & Aero Cable Anchor

• Material: Cold-Forged Aluminum Alloy Body with Steel Hardware

• Condition: Used, Cleaned, Checked and Fully Functional

• Origin: Made in Japan

Description:

Engineered during Shimano’s groundbreaking aerodynamic revolution of the early 1980s, the Shimano 600 AX RD-7300 is one of the most innovative rear derailleurs in cycling history. Designed to minimize air resistance, it features an entirely shrouded, wind-tunnel-optimized parallelogram body, recessed limit screws, and a top-loading aerodynamic cable clamp. Paired with Shimano’s Centeron pulley system for crisp, chatter-free gear changes, this derailleur is the centerpiece of any authentic early-1980s aerodynamic steel racing restoration.