The DN300 battery features the same waterproof design that Di2 users have loved for generations. Now with 3 ports, it delivers stable power to Shimano's 12-speed road derailleurs and shifters (if a fully wired option is selected). With the same size as its predecessor, the slim DN300 battery can be housed inside seat posts or frames ensuring a clean aesthetic. Now with 3 ports, the DN300 simplifies wiring to front and rear derailleurs, supplying stable power at all times. The third port is for riders who seek the redundancy of Shimano's 12-speed Di2 wired option. Shimano E-Tube Compatible E-Tube is Shimano's “service” that uses websites or apps to maximize the enjoyment of riding a bicycle by connecting the riders, the bicycles and Shimano. Shimano's genuine application E-Tube Project for Mobile allows you to customize your bike, update firmware, and maintain it by connecting it wirelessly to your bike. You can also get more detailed bike maintenance by connecting to your bike by wire with E-Tube Project via the Windows V4 application.
Specifications:Group: Alfine Di2,Model: SG-S7051-8,Gears: 8.
Key Features:Di2 charger for the internal battery that will keep your Di2 system shifting,Di2 uses a powerful long-life 7.4V Li-Ion battery: keep it in top condition and ready for shifting with this specific Shimano Di2 charger,1.5 hour charge time,Plugs in directly to the SM-EW90 handlebar junction A,Can also be used for completing firmware updates when linked to E-tube software on your PC.
Di2 charger for the internal battery that will keep your Di2 system shiftingDi2 uses a powerful long-life 7.4V Li-Ion battery: keep it in top condition and ready for shifting with this specific Shimano Di2 charger1.5 hour charge timePlugs in directly to the SM-EW90 handlebar junction ACan also be used for completing firmware updates when linked to E-tube software on your PC
Di2 charger for the internal battery that will keep your Di2 system shifting. Di2 uses a powerful long-life 7.4V Li-Ion battery: keep it in top condition and ready for shifting with this specific Shimano Di2 charger.1.5 hour charge timePlugs in directly to the SM-EW90 handlebar junction ACan also be used for completing firmware updates when linked to E-tube software on your PCPlease note: Does not include power lead
SM-JC41 cable junction for internal wire routingJunction is required for connection of rear mech front mech battery and cable to battery indicator junction boxTo be positioned neatly inside frame tubing when connectedCables sold separatelyReliable and secure water resistant connectors
SM-JC41 E-tube cable junction for internal wire routing,Junction is required for connection of rear mech, front mech, battery, and cable to battery indicator junction box,To be positioned neatly inside frame tubing when connected,Cables sold separately,Reliable and secure water resistant connectors.
Interchangeable precision engineered disc calliper mount adapter. For post type disc callipers to be mounted to international standard frames with 160 mm disc rotors
Interchangeable precision engineered disc calliper mount adapter. For post type disc callipers to be mounted to international standard frames with 180 mm disc rotors
Interchangeable precision engineered disc caliper mount adapterFor post type disc callipers to be mounted to international standard frames with 203 mm disc rotors
Shimano SM-RT64 rotors offer secure and easy set-up with the proven Centre-Lock mounting system,Precision cut stainless steel braking surface improves pad clearing in muddy conditions while aiding cooling underhigh load,Rotor contact surface has been developed for excellent pad clearing and cooling which increases pad performance and life,Alloy spider supports rotor surface, increasing rigidity and reducing weight,Comes complete with steel lockring,Average weight for 160 mm rotor with lockring is 153 grams.
With Di2 technology shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear. The removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused by contaminates, corrosion and stretching, and also provides effortless gear shifts.Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold, sprinter single button shift switches are used to operate the rear derailleur with a tap of the thumb whilst in the drops, one shifter up , one shifter down.Can only be used in conjunction with ST-9070 drop bar STI shiftersShift switches are supplied with 130 mm E-tube electrical cables installedWeight: 10g (pair)