Shimano tiagra 4603 triple braze on front mechshimanos tiagra 4603 triple braze on front mech offers you 10 speed shifting at a lower price point and provides smooth and efficient shifting thanks to its wide pivot link designed for use on a 3x10 drivetrain its perfect for those who are new to the sport and for use on road bikes or flat bar hybrid bikes features swing actiontop swing cassette compatibility10 drivetrain compatibility designed for 3x10 speed systems top gear teeth50t ca