ST-R8170, Ultegra, Wireless Position:Rear Crafted from a 10mm thick

Crafted from a 10mm thick billet of durable T6-6061 alloy and finished with a resilient hard-anodized coating

with easy access and zero drag

Complies with CE EN 1078:2012 and CPSC 1203 safety standards

The mirrored surface makes this mask a smart option for outdoor swimming and triathletes

ST-R8170, Ultegra, Wireless Position:Rear Crafted from a 10mm thickShimano's new ULTEGRA ST R8170 brake levers bring enhanced modulation and control to every ride by employing Shimano's proven SERVO WAVE technology. The all new Di2 platform, used on both DURA ACE and ULTEGRA, untethers the shifters while delivering our fastest, most reliable wireless shifting. Your time on the bike is precious, let Shimano make it even better. BENEFIT Clean Cockpit: Wireless connection enhances the aerodynamic effect and easy