Designed similarly to Dura-Ace the ST-6600 dual control levers are 10-Speed compatible. A more ergonomic hood fits hands better now that it is 5mm small in circumference. The shifting arc has been improved upon also. Flight Deck Compatible-ST-6600 is fully compatible with the Flight Deck system
Includes STI levers and Instructions only. Cables and Housing Sold Separetly 490g/Pair k