How To Rebuild a Shimano 600 6400 6401 Tricolor Derailleur

[@wilyamiyoo]

Solid work man! Your channel deserves more views with these RD teardowns alone. Just did my first pulley teardown on a similar 6401 I just picked up recently.

[@slideman.]

Good job! The 6404 model had a cut-out in the cage. the 6404 is a 8sp der.

[@RetroRebuilds]

Yessir! I think it’s the 6401 tho look it up

[@wilyamiyoo]

6401 is the 8 speed with the open cage.