CS-R8101 Ultegra 12 Speed Socks the V9 has a braided

the V9 has a braided graphite + basalt frame with a DirectConnect carbon fiber handle for enhanced torsional stability

aerodynamic

low weight and an attractive design

and a new companion app for phones to allow for easier setup and route uploads

CS-R8101 Ultegra 12 Speed Socks the V9 has a braidedThe uninterrupted shifting experience of the ULTEGRA R8100 12 speed cassette range lets you climb, sprint, or cruise 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. HYPERGLIDE+ cassettes revolutionized off road shifting with its seamless shifts both up and down the gear range. Now it's time for the technology to change