Dura Ace R9200 Cassette (12-Speed) Type:12 Speed You get all important information

You get all important information conveniently at the touch of a button during the ride

especially well-suited to very aggressive

helping to protect against neck injury

2 and above

Dura Ace R9200 Cassette (12-Speed) Type:12 Speed You get all important informationThe Shimano Dura Ace CS R9200 Cassette brings Hyperglide+ technology to the road. Hyperglide+ allows for better shifting under load so it is no longer necessary to ease up on the pedals when making a shift. For simple compatibility, Shimano 12 speed road cassettes fit on the same hub body as 11 speed road cassettes. This allows riders to use their current wheels for 12 speed. Shimano also managed to add the extra sprocket without increasing the total