Optimized for electronic shifting and featuring X-Range gearing technology for AXS groups
Features at least five one-tooth jumps for a smoother gear progression
10-tooth start helps provide a wider gearing range
Replacement for BB-ES25, now 25g lighter
Tubular 22mm spindle for Octalink V2 crank arms
More rigid assembly than square taper
Sealed cartridge bearings
Mounting bolts not included
The standard of the industry, Park Tool Shop Cone Wrenches are unmatched in quality and performance. The special "Y" head design puts more material where it's needed for strength and durability.
Compatible with EW-SD50 Di2 Wire
Capacity: 500 mAH (± 2000km)
Use with EW-WU101 or SC-MT800 interfaces/junction to gain BlueTooth Smart wireless connectivity for on-the-fly adjustments with smartphones and tablets
