Shimano RD-U8050-SGS Cues 11Spd Di2 Rear Derailleur oem With an IP55 rating that

With an IP55 rating that weathers dust and moisture

which means more consistent chain riveting and greater overall strength

SpeedCORE™ construction consists of a thin air-tight layer of rubber compound infused of aramid particles

Number of holes: 32

The rubber insert firmly linked to the bead provides superior protection against pinch-flats while delivering great support at lower inflation pressures

Shimano RD-U8050-SGS Cues 11Spd Di2 Rear Derailleur oem With an IP55 rating thatCompatible with LINKGLIDE 11 50T 11 speed cassette Wireless LED indicator and function button Make rear derailleur adjustments with the E TUBE PROJECT Cyclist App Connect to compatible BOSCH BSE3 drive units with electric power supply wire EW PS300