Shimano Ultegra R8170 12-Speed Di2 Disc Groupset SPARE PARTS stamped steel cogs held together

stamped steel cogs held together with 123 high-strength stainless steel pins

For the utmost safety in the water

11 mm hexagonal chain with textile sleeve to protect against damage to the paintwork ABUS Power Cell technology offers the highest level of protection against impacts and attempts to break the lock ABUS Power Link technology enables the chain to be connected directly to the Power Cell Interwoven coating of the lock body to protect against brutal methods of attack The chain

Optimized gear steps on low end

Shimano Ultegra R8170 12-Speed Di2 Disc Groupset SPARE PARTS stamped steel cogs held togetherIncludes: Shimano Ultegra Di2 ST R8170 Lever w Brake Caliper 12s Right Lever Shimano Ultegra Di2 ST R8170 Lever w Brake Caliper 12s Left Lever Shimano RD R8150 Rear Derailleur Ultegra Di2 12Spd Shimano FD R8150 Ultegra Di2 Front Derailleur 12 speed Braze On Shimano SM BB72 Bottom Bracket Road 41mm Shimano BT DN300 Battery Di2 Internal Type Shimano EW EC300 Di2 Charging Cable 1700mm Shimano EW SD300 I Electric Wire Di2 1200mm Shimano EW SD300 I