Shimano Dura-Ace CS-R9200 Cassette - 12-Speed 11-30t Gray CheckoutTitle=Muc-Off Chainstay/Seatstay Protection Kit - 20-Piece Kit Shift from the big to

Shift from the big to small chainrings or vice versa whenever you like while minimizing the risk of a dropped chain

6m (Perfect for yoga

Certified CE EN 1938 :2010

}Shimano Dura-Ace R9100 39t 110mm 11-Speed Chainring for 39/53t

Shimano Dura-Ace CS-R9200 Cassette - 12-Speed 11-30t Gray CheckoutTitle=Muc-Off Chainstay/Seatstay Protection Kit - 20-Piece Kit Shift from the big toShimano Dura Ace CS R9200 Cassette 12 Speed 11 30t Gray. The uninterrupted shifting experience of the Shimano Dura Ace R9200 12 speed cassette range lets you climb sprint and push your limits without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12 speed freehub bodies. Shimano HYPERGLIDE+ technology is integrated to provide seamless shifts both up