Di2 Junction Spacer Type 3 for Lower Adapter [REC MOUNT] [Di2-Specer3]

Shimano Di2 junction adapter type 3, a spacer type that is inserted between the REC Mount computer mount and the lower adapter of the 400 standard and some 200 standard Compatible with Shimano Di2 junction SM-EW90-A (3 ports) and SM-EW90-B (5 ports) It is approximately 7mm longer than the Di2-EW90-400Specer and has three holes, allowing for two-stage adjustment. Material: Aluminum + resin