SRAM XPLR XG-1271 10-44T 12-Speed Cassette

The SRAM XPLR XG-1271 cassette is a 12-speed, 1x specific gravel cassette built around a 10-44T spread. The 440% range of the XPLR XG-1271 cassette provides smooth gear progression when you’re sweating up gravel climbs, and tight jumps on the high end for when it’s time to drill it on asphalt. It is designed as part of SRAM’s XPLR ecosystem for riders who want one chainring simplicity without sacrificing climbing range or top-end speed.

Who Is the SRAM XPLR XG-1271 Cassette Built For?

This cassette suits gravel and all-road riders running a 1x AXS electronic drivetrain who want to tackle everything from long, loose climbs to fast pavement sections without swapping chainrings. It is aimed at riders already invested in SRAM’s XPLR rear derailleur and Flattop chain system, from weekend adventure riders to competitive gravel racers who need a wide gear spread and dependable shifting under load.

Specification	Detail
Model	SRAM XPLR XG-1271, CS-XG-1271-D1
Speeds	12
Gearing / Range	10-44t
Cog Progression	10,11,13,15,17,19,21,24,28,32,38,44
Total Gear Range	440% range
Construction	MINI CLUSTER hybrid cassette construction combines four small cogs that are CNC machined out of a single block of billet steel with an additional eight cogs that are individually pinned together.
Material	Sprocket Material: steel (sprockets 1 – 11), aluminium (sprocket 12)
Cog Finish	Nickel Chrome
Driver Body Compatibility	Driver body interface: XDR
Chain Compatibility	Chain Technology: Road Flattop D1/E1
Claimed Weight	XPLR XG-1271 10-44T cassette: 373g

Why the SRAM XPLR XG-1271 Cassette Suits Gravel Riding

The SRAM XPLR XG-1271 cassette uses SRAM’s MINI CLUSTER construction, pairing four small cogs CNC machined from a single block of billet steel with eight individually pinned cogs, while the largest cog is aluminum to keep rotating weight down where it matters most . This mixed-material approach keeps the overall cassette light while retaining durability where the chain load is highest on the smaller cogs. The nickel chrome finish adds further protection against the grit and moisture that gravel riding throws at a drivetrain.Shift quality is tuned specifically for electronic actuation. The cog surfaces are shaped specifically for AXS electronic shifting, with the ramps and pins designed around the derailleur executing shifts under load rather than around a human hand feathering a lever. In practice this means the SRAM XPLR XG-1271 cassette delivers crisp, consistent shifts even when you are pedalling hard over broken terrain, rather than requiring a brief pause in power delivery to complete a gear change.The 10-44T spread on the SRAM XPLR XG-1271 cassette has become a benchmark for 1x gravel setups because it bridges two very different riding demands. The cassette offers enough gear range for the steepest climbs as well as for fast flat passages, with a smooth course and finely graduated smaller sprockets so riders can always keep a comfortable cadence. The cog progression keeps single-tooth jumps in the fastest gears and opens up as you climb into the bail-out range, and paired with a 40T or 42T front chainring, most riders end up with a gear range that covers everything from pavement group rides to loaded dirt-road climbs. Riders building out a drivetrain can browse the full gravel component range at Enduroplanet to match this cassette with a compatible XPLR derailleur and chain.Installation requires an XDR-specific freehub body rather than a standard HG or XD unit. The cassette is for use with XPLR 1x rear derailleurs, compatible with Flattop chains and XDR driver bodies, meaning it will not fit a standard 11-speed HG freehub body, so an upgrade from an 11-speed wheelset requires swapping the driver body to XDR first. Once correctly fitted, the SRAM XPLR XG-1271 cassette runs smoothly across its full range with no drag or hesitation between shifts, giving riders confidence on technical singletrack as well as open gravel roads.

5 Reasons You’ll Want the SRAM XPLR XG-1271 Cassette

• Wide Gear Range in One Cassette: The 10-44t cassette offers a 440% range which has you covered when you find yourself on a loose and technical climb while also offering enough top end with the 10t cog for when you have to put out some watts on the flats and downhills.
• Lightweight Build: The XPLR XG-1271 10-44T cassette has a claimed weight of 373g , helping keep rotating mass low without compromising durability.
• Smooth Electronic Shifting: Shift features on each cog are optimized for electronic shifting, so you’ll get fast, smooth and precise shifts every time.
• Durable Everyday Finish: The sprockets are coated with nickel-chrome to ensure a long service life and a smooth chain run.
• Purpose-Built for Gravel Drivetrains: The cassette is compatible with all SRAM XPLR rear derailleurs and SRAM Flattop 12-speed chains.

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