SRAM GX Eagle XS-1275 T-Type Cassette - 12 Speed - 10-52T

Name: SRAM GX Eagle XS-1275 T-Type Cassette - 12 Speed - 10-52T
Brand: SRAM
SKU: f6sajzlbed
Availability: InStock

The GX Eagle Transmission (T-Type) Cassette is a key reason why Eagle Transmission offers the best...

Best current price£191.49from Tredz

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Sram Black 1275 T-Type Eagle 10-52T 12 Speed Cassette Size 10

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Product Information

Full details

The SRAM GX Eagle XS-1275 T-Type Cassette is designed for mountain bikers seeking high-performance, durable shifting under load on modern 1x drivetrains. Its standout benefit is the optimized X-SYNC design, which facilitates smoother gear transitions the harder you pedal, ensuring reliable performance in technical terrain. While it provides an impressive 520% gear range, users should note that it is specifically optimized for a 55mm chainline, meaning it requires compatibility checks with your current crankset and frame setup.

All features

Model Part Number	FW8148000
Brand	SRAM

Extended Product Information

FAQs

Is this cassette compatible with non-T-Type derailleurs?

This cassette is optimized for the SRAM Eagle Transmission (T-Type) ecosystem and is intended to be used with T-Type components for best results.

Do I need a special tool to install this cassette?

Yes, you will need a standard XD cassette removal tool to install or remove the lockring.

Can I use this with an 11-speed chain?

No, this cassette requires a dedicated 12-speed Eagle Transmission chain.

What freehub body standard does this require?

This cassette requires a SRAM XD driver body.

How do I know if my bike uses a 55mm chainline?

Consult your crankset manufacturer's specifications or your bike's geometry sheet; most modern T-Type compatible bikes are built to the 55mm standard.

Troubleshooting

Difficulty shifting into the largest cog

Check that your derailleur hanger is straight and ensure your T-Type derailleur is indexed using the Setup Cog provided on the cassette.

Excessive chain noise under load

Confirm your chainline is set to 55mm and ensure the chain is fully compatible with the T-Type Eagle Transmission system.

Cassette feels loose on the hub

Verify that the cassette lockring is torqued to the manufacturer's specification and that the XD driver body is properly secured to the hub shell.

Pros and Cons

Pros

Seamless shifting performance under high power loads
Improved gear spacing in the climbing gears
Enhanced durability due to reduced chain angles
Easy installation with the integrated setup cog
High-range 520% gearing for versatile trail use

Cons

Requires a 55mm chainline for optimal performance
Heavier than higher-tier carbon-spider models
Not compatible with standard HG or Micro Spline freehub bodies

Setup, Compatibility & Care

To ensure proper installation, the cassette must be installed on a SRAM XD driver body. Because this cassette is part of the T-Type Eagle Transmission ecosystem, it is designed for a 55mm chainline; verify that your crankset is compatible with this chainline spec before installation. During setup, make use of the dedicated Setup Cog marked on the cassette to align your derailleur indexing precisely. Maintenance is straightforward: keep the cassette clean of debris and grime to preserve the X-SYNC profile. Use a standard chain degreaser and a stiff brush to remove buildup, and ensure your chain is waxed or lubed according to high-torque riding standards to maintain the crisp shifting feel.