Rear disc brake set Shimano Ultegra R8170 right 12s (2x12) Di2

Shimano ULTEGRA Di2 ST-R8170+BR-R8170 12-speed Disc Brake rear The redesigned Shimano Ultegra Di2 ST-R8170 brake levers with BR-R8170 caliper feature new ergonomics and even more precise brake modulation thanks to SHIMANO´s proven SERVO WAVE technology. Wireless electronic shifting provides even more control. •1.5 to 2 years of battery life with easy-to-change CR1632 shifter batteries •Handlebar mounting: right •Gear rear: 12-speed •Lever reach adjust: Yes •Handlebar diameter: 23.8mm/24.2mm •Brake-type: Hydraulic Disc Brake •Brake caliper: BR-R8170 •Brake mounting: Flat-Mount •Brake pads: L03A Resin with Fin •Brake hose: SM-BH90-JK-SSR rear 1700mm (shortable) •One-Way bleeding: Yes •Brake fluid: Mineral oil •Recommended brake rotor: RT-MT800 (140mm/160mm) •Compatible electric wire: EW-SD300 •E-tube Project: Yes •E-tube port (pcs): 2 •Di2 Wireless-Chip: Yes •Battery: CR1632 x 1 •Body: CFRP •Lever: Carbon, painted •Caliper: Aluminium