SHIMANO ULTEGRA BR-R8170 FLAT MOUNT REAR DISC BRAKE CALIPER Finance rigorous lab testing and extensive

rigorous lab testing and extensive field testing mean the EVO crankset is both lighter and stiffer than the previous model

the Shimano Di2 GRX 2x11-speed ST-RX815 STI for hydraulic disc brake is characterized by excellent deceleration performance to maintain control on steep

Recommended Pressure: 45-80 PSI

1 x Hope Tech 4 V4 disc brake

Upper Tubes: Straight Wall Aluminium

SHIMANO ULTEGRA BR-R8170 FLAT MOUNT REAR DISC BRAKE CALIPER Finance rigorous lab testing and extensiveGreat speed means great responsibility. That's why, faced with the task of making the new ULTEGRA groupset even faster, Shimano decided to take a holistic and 100% performance focused approach. Shimano's new 12 speed road groupset delivers unparalleled control and comfort anytime, anywhere whether you're competing in an amateur race, chasing your personal best, or out for a social ride. That is "Science of Speed". And it's what sets SHIMANO apart from