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The SRAM Apex XPLR derailleur hits the sweet spot of smooth jumps over a big gear range, all with unmatched chain security and the simplicity of a 1x drivetrain.
You want your bike to do everything, so you need gears that can do everything.
The Apex XPLR derailleur hits the sweet spot of smooth jumps over a big gear range, all with unmatched chain security and the simplicity of a 1x drivetrain. Quietly and quickly shift across our 12-speed cassettes with 44T large cogs, knowing you’ll have the gears 
you need.
Technology | Â | Â |
Yaw | Â |
With a front derailleur cage that rotates to maintain a consistent angular relationship with the chain, Yaw technology eliminates the need for shifter trim. As a result, shifts feel more direct and precise, delivering an unmatched performance advantage in front shifting. |
eTap | Â |
All of the underlying tech in our new SRAM RED eTap groupset, such as wireless shifting, advanced battery power management, and mechatronics technologies, are meant to serve one ultimate purpose: to facilitate the most intuitive and consistent shifting available. This shift logic is called eTap. Right lever makes it harder, left lever makes it easier, both levers shift the front derailleur. Simple, unmistakable, and intuitive. |
X-Sync | Â |
SRAM X-SYNC 1x chainrings provide the highest level of performance and durability. The SRAM X-SYNC tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC chainrings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC rings are an integral part of the SRAM 1x drivetrain. Accept no imitation. |
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Specification |
 |
Details |
Speed (RD) |
 |
12 |
Cable Pull Ratio |
 |
X-Actuation |
Cage (RD) |
 |
n/a |
Max Tooth |
 |
44 |
Color (RD) |
 |
Black |
Pulley Bearings Material |
 |
Steel |
Cage Material (RD) |
 |
Aluminum |
Rear Derailleur Mount |
 |
Road, UDH |
Drivetrain Configuration |
 |
1x |
RD Minimum (Cassette) |
 |
36 |
Communication Protocol |
 |
n/a |
Shift Technology |
 |
X-Actuation |
Chain Technology |
 |
Road Flattop D1, Road Flattop E1 |
RD Capacity |
 |
34 |
RD Maximum (Cassette) |
 |
44 |
RD Smallest (Cassette) |
 |
10 |
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