There’s a new mixed drivetrain option in town. Cyclocrossers, monster crossers and gravel enthusiasts have been drawn to SRAM’s roller bearing clutch Type II rear derailleurs for better chain security ...
The Tiagra cassette’s ratios are reported to be 11, 13, 15, 17, 19, 21, 23, 25, 28, 32 and 36 teeth. For 105, the equivalent 12-speed cassette has 11, 12, 13, 14, 15, 17, 19, 21, 24, 28, 32 and ...