Rear derailleur SRAM Apex XPLR AXS D1 12-speed

The Apex XPLR AXS rear derailleur is designed for wide-range cassettes with a largest cog of 36T or 44T. Its spring clutch helps manage the chain on and off the road. The eTap shifting logic and AXS connectivity provide intuitive operation.

AXS allows wireless setup and monitoring, personalisation and reliability checks.

• Designed for 1x drivetrains
• Compatible with 11-44T XPLR, 10-44T XPLR and 10-36T cassettes
• Chain management provides quiet and secure operation

Technical specifications

• Gears: 12
• Maximum cog: 44
• Pulley wheel material: steel
• Cage material: aluminium

X-SYNC

SRAM X-SYNC 1x chainrings are designed for performance and durability. The tall, square edges of SRAM X-SYNC teeth engage the chain earlier than traditional triangular teeth. The sharp, narrow tooth profile and rounded, chamfered edges help control a damaged chain. To support operation in muddy conditions, X-SYNC chainrings have mud-clearing recesses for the inner chain links and rollers. Designed in Germany, X-SYNC chainrings are an integral part of the SRAM 1x system.

eTap

SRAM RED eTap groupsets use technologies such as wireless shifting, advanced battery power management and mechatronics to make shifting simple and consistent. This shifting logic is called eTap: the right lever shifts to a harder gear, the left lever shifts to an easier gear, and both levers control the front derailleur.

AXS

AXS is SRAM's bike component integration system, connecting electronic components and software. The SRAM AXS app lets riders check battery status, change component behaviour, customise controls, receive maintenance reminders and update software.

X-Range

X-Range is designed for modern road riding. The drivetrain has been redesigned to provide a wider range, more useful and smoother gear progression, and smarter shifting settings enabled by the AXS system.