Shimano EW-SD50 Di2 E-Tube Wire 750mm Fits Model-Ultegra 8150 front/rear rear (Micro Spline) axle/spacing

front/rear rear (Micro Spline) axle/spacing (mm) 12x157 Super Boost hole 32h color black freehub aluminum weight 311g

Tooth Count 50 Chainring BCD 130

This exceptionally durable chain features KMCs Eco ProTeQ treatment for superior anti-rust protection

ADVANCED PERFORMANCE MATERIAL STRAP

Shimano EW-SD50 Di2 E-Tube Wire 750mm Fits Model-Ultegra 8150 front/rear rear (Micro Spline) axle/spacingShimano EW SD50 Di2 E Tube Wire 750mm. Shimano E Tube wires and connectorsFrame grommets for E tube internal wiring compatible frames are sold separately see Shimano Frame Grommet Kit Electronic Shifter Extra Parts Ultegra Di2 wires utilize Shimanos e tube technology; e tube is a two prong system and is NOT cross compatible with Dura Ace 7970 Di2 wiring All e tube wires may be used for internal or external applications TECH SPECS Length 750