12-speed aluminum cage, spring clutch for quiet and secure chain operation, suitable for 1x drivetrains, programmable via the AXS app, battery not included. Weight: 327 g (without battery) Type Item E-bike type ready Area of application Gravel Functionality electronic Group affiliation Apex XPLR AXS Main color black Mounting Direct mount System compatibility 12-speed max. sprocket size 44 T. This Apex XPLR Axs derailleur ensures flawless shifting on any terrain; forest, gravel or asphalt. Equipped with all the advantages that AXS has to offer with a wide range up to 44T! AXS connectivity Specifically for use with 11-44T XPLR, 10-44T and 10-36T cassettes Sram Article number: 733385 EAN code: 710845887499 Supplier number: 00.7518.175.000 Retail packaging: Yes