Shimano Ultegra ST-R8170E Di2 Shift/Brake Lever BR-R8170 Hydraulic Disc Brake Caliper - Left/Front 2x Flat Mount BLK

Shimano Ultegra ST-R8170E Di2 Shift/Brake Lever BR-R8170 Hydraulic Disc Brake Caliper - Left/Front 2x Flat Mount BLKYour 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 Shimano's proven SERVO WAVE technology. The Di2 platform untethers the shifters while delivering fast and reliable wireless shifting. The BR R8170 hydraulic 2 piston disc brake caliper brings a new level of control to the road cycling world with improved modulation and a quicker initial

BCD Direct Mount SRAM 3 Bolt BB Inclusion No Chainline 76

Models for English Italian & French bottom bracket threads

Front daisy chain for mounting accessories

from XC to Downhill

making it a great choice for riders who want speed without giving up control

Wedge shape of Shimano’s most survivable rear derailleur to-date avoids more direct impacts and smoothly glances off rocks if there is a hit

Merlot Red

Dual zippered hipbelt pockets stretch mesh front pocket dual side compression blinker light attachment and reflective graphics for safety

9 (1-3/8") Front Derailleur Cable Pull Dual Front Der/Shifter Compatibility Shimano Mountain Max Ring (teeth) 46 Front Derailleur Style Topswing

Compatible only with Hyperglide+ 12-speed chain

Carcass construction is robust and impervious against damage and penetration from foreign objects resulting in a versatile low weight and an attractive design Flat Protection Tread and Sidewall TPI 330 Color Black Weight 1000 Designed for ebike Yes Defined Color Black ISO Width (mm) 60 ISO Diameter 584 / 650b / 27

Centerlock disc brake rotor mount