How to adjust your Shimano Di2 shifting (11-speed)

If the gears ever get stuck, Shimano Di2 shifting systems can be adjusted with minimal effort. We'll show you how to get your Di2 11-speed rear derailleur working again in three easy steps.

• Hex wrench, 2 mm
• Workstand (optional)

This tutorial describes how to set up 11-speed Di2 systems for gravel and road groupsets. The images show a different rear derailleur model and are for illustrative purposes only. For more details, please refer to the manufacturer's manual.

• H-screw (outer end stop adjustment)
• L-shaped screw (inner end stop adjustment)
• B-screw (chain wrap adjustment)
• Function button at the end of the handlebar (switch to settings mode)
• Shift buttons on the shifter (rear derailleur fine-tuning)

• Shift to the small chainring at the front and the largest sprocket at the rear.
• Turn the B-screw in or out to adjust the distance between the upper pulley wheel and the largest sprocket.
• The gap should be as small as possible, but large enough to prevent contact and ensure that the chain runs smoothly.
• Shift to the large chainring at the front and the smallest sprocket at the rear.
• Make sure that there is no contact between the pulley wheel and the sprocket in this position either.

• Move up to 5th gear (fifth-largest sprocket).
• Press and hold the function button at the end of the handlebar (above the charging port) until the LED turns red (setting mode).
• You can now use the buttons on the shifter to move the rear derailleur in small increments to the left or right.
• Move it all the way to the left until the chain touches the 4th sprocket and until a slight noise can be heard when turning the crank forward.  
• Now move the rear derailleur 5 notches to the right toward the 5th sprocket. For road groupsets, there are only 4 steps.
• Press and hold the function button at the end of the handlebar until the LED stops flashing red (normal mode).
• Shift through all the gears. If the chain is rubbing in a gear, repeat the procedure in that gear.

• Shift to the small chainring at the front and the largest sprocket at the rear.
• Now turn the L-screw (clockwise) until the front end lightly touches the stop (on the opposite side).
• Shift to the large chainring at the front and the smallest sprocket at the rear.
• Now turn the H-screw (clockwise) until the front end lightly touches the stop (on the opposite side).
• Finally, turn the H-screw back one turn.

Your rear derailleur should now shift smoothly and run silently.
If it cannot be adjusted in this way, there may be various reasons such as a bent derailleur hanger. In such cases, the service workshop in your Rose store will be happy to help you.