This is an upgrade from the previous model and works great but is a step down from the Dura Ace in every category excepting possibly for durability. It is also much less expensive so it is a great buy. If you are not a high performance rider or racer then you won't go wrong with this derailleur.
Verified purchase: Yes | Condition: New
Upgraded from the previous model DI2 ultegra. Much smoother, faster and the shadow technology is the bomb
Verified purchase: Yes | Condition: New
Excellent product, good conditions
Verified purchase: Yes | Condition: Pre-owned
Excelente
Verified purchase: Yes | Condition: Pre-owned
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