Super Record 13 front derailleur, featuring a lightweight design, a new carbon fork, and a wider chain retention range with a capacity now spanning from 29 to 55 teeth.The new engineering ensures smooth movement in both directions, even when the chain is under load or experiencing strong jolts.Front battery position: provides more space for the rear tyre and offers a range of up to 750 km.The battery can be charged directly on the bike or easily removed for charging via a standard USB socket with its specific charging cable.Full charge is completed in one hour (though it reaches 90% in just 45 minutes) and the system status can be checked via a single coloured LED.2 mounting holes for a braze-on attachment to accommodate a wide range of chainring options.