Vintage Shimano STX RD-MC30 Rear Derailleur for mountain bikes

Condition: Used, fair with visible signs of wear and moderate cosmetic scuffs, dirt, and oxidation as shown in photos

All parts appear intact including tension and guide pulleys; cage and mounting threads undamaged

Visible brand markings: "Shimano STX" on derailleur body, "RD-MC30 Shimano Japan VIA" stamped on inside of cage

Long cage design suitable for wide-range mountain/trail gearing setups from the 1990s

Compatible with 7 speed and some 8 speed drivetrains

Alloy and steel construction, original black plastic barrel adjuster present

Weighs approximately 320 grams (see scale photo, packaging included in photo may affect weight)

Era: Early to mid 1990s, classic retro MTB component made in Japan

Great for vintage mountain bike restorations, retro builds, or parts replacement

Model: RD-MC30, Made in Japan