Sram: Gravel throws just about everything at your bike, and the RED XPLR AXS rear derailleur will happily take it all. Bring on the sticks, stones, and airport baggage abuse because the Full Mount derailleur design fits onto frames with the hangerless interface to make for the most robust and reliable gravel drivetrain possible. No adjustment screws mean setup is simpler than ever. And a surprise stick is no match for the Magic Wheel, as the debris-resistant lower pulley keeps the chain moving at all times. Purpose built for gravel, this 1x specific unit prioritizes shift precision and chain management no matter the terrain or conditions. FEATURES 1x specific for use with 10-46T XPLR 13-speed cassette and road Flattop chains Hangerless Interface and Full Mount attachment allow for the most precise shifting and the ultimate resistance to impact Requires frame with UDH interface Simple setup with no adjustment screws Superior chain management with MTB-inspired spring clutch Replaceable and rebuildable parts Magic Wheel keeps the chain moving, even if debris enters the lower pulley Compatible with existing AXS batteries SPECIFICATIONS Speed (RD ) 13s Max tooth 46 Colour (RD) Silver Pulley bearings material Ceramic Cage material (RD) Carbon Battery not included