Park Tool - IR-1.3 - Internal Cable Installation Tool

Di2 Specific Adapter: A custom-designed connector that attaches to the end of the Shimano Di2 EW-SD300 shift cable. It is sized to fit perfectly into holes as small as 6 mm.

Double threaded needle: This needle ensures a secure attachment of the new housing or hydraulic line to the existing housing or line.

Cable shortening: All cables have been shortened from 250 cm to 188 cm (98 to 74 inches) for better management.

Round housing with screw cap: The housing has been replaced with a round model with a screw cap, which improves the fit for coiled cables.

Barbed adapter: Inserted at the end of the brake and speed cable housing and into the hydraulic brake line.

Rubber adapter: Holds the electronic speed cable firmly in place.

Reverse polarity magnet: Inserted at the opposite end and meeting the main cable in the middle, simplifying wiring on frames with intricate internal shapes.