Dura Ace R9200 Cassette (12-Speed) Type:12 Speed Compatible with 10-Speed Dyna-sys drivetrains

Compatible with 10-Speed Dyna-sys drivetrains

840D Ballistic Nylon Carbonate exterior

Tires: EVA Airless Tires Rims: 12" Weight: 10 lbs

helping to protect against neck injury

Dura Ace R9200 Cassette (12-Speed) Type:12 Speed Compatible with 10-Speed Dyna-sys drivetrainsThe 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