NEW Shimano Dura Ace ST-R9150-R Di2 Shifter / Brake Lever, 11 speed, Mechanical variant-size-49cm Largest Cog: 48

Largest Cog: 48

The 12 x 100 mm thru-axle keeps Waxwing stiff for steady tracking and responsiveness when dodging ruts

The Open Loader requires the Bamboo Base Board

HD Speed Guard provides the highest level of puncture protection in the Marathon line

NEW Shimano Dura Ace ST-R9150-R Di2 Shifter / Brake Lever, 11 speed, Mechanical variant-size-49cm Largest Cog: 48The DURA ACE R9150 levers offer better control and confidence in race conditions. The lightweight carbon hood material, enhanced shifter layout, and increased reach adjust range are the culmination of generations of SHIMANO's DI2 refinement. Electronic shifting for instant, accurate shifts 11 Speed compatible with enhanced feedback and improved ergonomics Cleaner wiring thanks to single wire E tube connections Easy to add satellite shifters for bar