Shimano Ultegra ST-R8150 Di2 Shift/Rim Brake Lever Set 2x12-Speed Bike Accessories_Smart Trainers Use LT-8011 for replacement batteries

Use LT-8011 for replacement batteries

Ships with 12mm front and rear end caps

Tapered P5 Fork Headset FSA IS2 1-1/8 x 1-3/8 Seatpost Cervélo SP23 Carbon Left Shifter/Brake Shimano Dura Ace

or English threaded

Now that’s bright

Shimano Ultegra ST-R8150 Di2 Shift/Rim Brake Lever Set 2x12-Speed Bike Accessories_Smart Trainers Use LT-8011 for replacement batteriesThe ST R8150 electronic shift brake levers 2x12 speed brake mechanically. It scores with fast gear changes that are defined and intuitive thanks to the Shimano index shifting system. Cables are routed from the STIs first to a junction box and then to the battery, which in turn is connected to the rear derailleur and front derailleur. You can also connect the STIs to each other and run a cable from the right shifter to the battery. The ergonomics of