Shimano Ultegra ST-R8170A Di2 Shift/Brake Lever with BR-R8170 Hydraulic Disc Brake Caliper - Left/Front, 2x, Flat Mount, Black Brakes Disc )- L/XL: 19

)- L/XL: 19

semi-rimless frame

Fabric Outer - Thermic™:

Weighing in at an unbelievable 540 grams per pair - or about half of traditional alloy poles – the Pure Carbon Classic is the best-selling carbon fiber pole of all time

Shimano Ultegra ST-R8170A Di2 Shift/Brake Lever with BR-R8170 Hydraulic Disc Brake Caliper - Left/Front, 2x, Flat Mount, Black Brakes Disc )- L/XL: 19Your 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