Electronics

The new DN300 Built-In type 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). - Compatible with thinner next-generation electric wire SD300 and systems after R9250/R8150 series - Li-Ion type - Capacity: 500 mAH |3.7Wh (± 2000km autonomy) - Rated voltage: 7.4V - Charges through RD-R9250 |RD-R8150 rear derailleur using EW-EC300 Di2 Charging Cable (sold separately) - Fixing small parts included - Weight: 52g

- Shift buttons mounted to the end of a bar plug - Included wire connects to Blip Box - Fits bars with 19 - 20.5mm inside diameter

KMC's digital ChainChecker is the most accurate tool for checking your chain’s elongation. - Measures up to 2.5mm elongation - Fits all chains including 11 speed - Handy electronic device - Stainless hardened metal body

EnergyPak Plus Accessory: - The EnergyPak Plus accessory includes a water bottle cage adaptor plate that can be mounted to the base plate when the EnergyPak Plus is not in use. - Anti-theft design. - The Energypak Plus Accessory kit is required to mount the Energypak 250 auxiliary battery on the bike.

In conjunction with the EPS Power Unit, the Interface is the "thinking" center of EPS and is responsible for on board diagnostics, managing settings, converting analog signal from Ergo Levers to digital and sending it on to the Power Unit maintaining a dialogue with the Power Unit. - Can be fit to the right-hand side (only on the right-hand side) of compatible handlebars or on the down tube of compatible frames - 2 connectors on the rear side - one to connect to the power unit (gray), and one to connect to the Ergopower controls (orange) - FD/Shifter Compatibility: EPS

EPS cable kits come in multiple options that allow for the mounting of the power unit beneath the bottom bracket or beneath the saddle. - Weathertight o-ring sealed connectors - Fitting the V4 internal interface to the handlebar (only right-hand side) requires two cablings - 1 cabling from the interface to the Ergopower controls, and 1 cabling from the interface unit to the power unit - 100mm from the interface unit to the splitter - 340mm from the splitter to the right-hand side Ergopower control - 1300mm from the splitter to the left-hand side Ergopower control - 800mm from the interface unit to the power unit