Impeccably finished second from top of the range Shimano 600 6400 series road rear mech for 6, 7 and 8 speed indexed systems. The 6400 group is definitely a personal favourite, cross-compatible with almost everything and really nicely finished but not as precious (or expensive!) as Dura Ace. The 6401 version of this mech is a short cage road mech that will also work seamlessly with friction set-ups.
- Model: RD-6401 SS
- Short cage
- Total capacity of 28 teeth
- Max cog size: 28 (but should be OK up to a 30 with care)
- Indexes with Shimano 6, 7 and 8 speed gear SIS systems (except Dura Ace!)
- Weighs: 222 grams
- Dated 1997
- Made in Japan
- In the box with instructions