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Specifically designed for "BOOST" 148mm x 12mm axle standard
GRX ST-RX600 Shifter/Hydraulic Brake LeverST-RX600 Dual Control shift/brake levers provide the same light shifting operation as top tier systems
The extruded bladder design is durable resists damping change during extended downhills and has virtually zero pressure offset for small bump sensitivity
Reach Adjust allows the rider to customize their feel
Shimano Ultegra ST-R8170E Di2 Shift/Brake Lever BR-R8170 Hydraulic Disc Brake Caliper - Left/Front 2x Flat Mount BLK Product Type_tire Specifically designed for "BOOST" 148mmShimano Ultegra ST R8170E Di2 Shift Brake Lever with BR R8170 Hydraulic Disc Brake Caliper Left Front 2x Flat Mount Black. Your time on the bike is precious let Shimano make it even better. Ultegra ST R8170 brake levers bring enhanced modulation and control to every ride by employing Shimanos proven SERVO WAVE technology. The Di2 platform untethers the shifters while delivering fast and reliable wireless shifting. The BR R8170 hydraulic 2 piston disc
US$ 114.00
US$ 32.00
US$ 35.00
