Features include a concealed Co2 inflator head (Presta only)

4mm across

The highest number of retention points in the industry ensures a secure fit

The SuperB Rear Derailleur Extender extends the position of a road derailleur to run a wide-range mountain bike-style cassette

SRAM Rival XPLR eTap AXS D1 12 Speed Rear Derailleur - Rear Derailleurs - 12 Speed - Black Gift Voucher Features include a concealed Co2If your ride doesnt feel complete until you get a little dirt on your tires, you know the importance of capable components that can tackle anything. The Rival XPLR eTap AXS rear derailleur is a dedicated 1x specific unit designed for use with the XPLR 10 44 cassette. It makes for an uncluttered drivetrain that takes on pavement and singletrack with equal aplomb. Wireless and proven eTap shift logic, AXS connectivity and advanced chain management mean