1975 SUNTOUR CYCLONE GT Rear Derailleur
New Old Stock with Original Box, Manual & Accessories
A true icon from the golden age of Japanese cycling components.
This is an authentic SUNTOUR CYCLONE GT rear derailleur, preserved in remarkable New Old Stock condition and complete with its original box, instruction manuals, and accessories — an increasingly rare find for collectors and vintage cycling enthusiasts alike.
Introduced during the mid-1970s, the Cyclone series helped establish SunTour as one of the most innovative drivetrain manufacturers in the world.
Its legendary slant parallelogram design delivered exceptionally smooth and precise shifting, influencing generations of rear derailleur development.
The beautifully polished alloy body, elegant pulley cage design, and period-correct details make this far more than just a component — it is a piece of cycling history.
Included are original 1975 printed manuals and mounting hardware, adding significant collector and archival value.
Perfect for:
 
 
High-end vintage road bike restorations
 
 
Eroica-style builds
 
 
Japanese cycling collections
 
 
Display and memorabilia collections

Condition:
 
 
New Old Stock (NOS)
 
 
Original box included
 
 
Original manuals and accessories included
 
 
Excellent cosmetic condition
 
 
Minor storage marks only
 
 
Pulley movement smooth and free

A rare opportunity to own one of the most important derailleurs of the 1970s — complete, authentic, and beautifully preserved.


“Bringing forgotten masterpieces to the next generation.”
— CDJ HERITAGE CLUB