SRAM XG-1275 GX Eagle 12 speed Cassette

SRAM XG-1275 GX Eagle 12 speed Cassette
96 reviews
Bike Type
Number of gears
Cassette Ratio
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162.70 6.60 discount
Due to the Brexit, it is currently only possible to place orders up to £135
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Pros & Cons

Pros & Cons

  • This cassette has a very good price-quality ratio.
  • With this cassette you shift very smoothly.
  • You need an XD body to be able to mount this cassette.
  • The weight of this cassette is relatively high.
Read more on what our customers have to say about this product



Brand SRAM
Bike Type Mountain bike / E-bike
Quality Better
Number of gears 12 speed
Suitable for Sram XD
Colour Black



In keeping with the XX1 and X01 groupset, there's now a 12-speed version in the guise of the affordable Sram GX Eagle groupset. The Sram GX Eagle cassette offers a 500% gearing range and features the latest technologies. The XG-1275 cassette offers sprockets ranging from 10t up to 50t. This gives you speed on the flats and allows you to take on any mountain you'd want to.

Cassette selection
With this Sram XG-1275 GX Eagle 12-speed cassette, you can choose between a 10/50 and a 10/52 cassette. The 10/50 cassette gives you smaller sprocket differences so that you can easily keep your cadence. The 10/52 cassette provides a lighter resistance, so that you can still get up that mountain on bikepacking trips with full pack!


Durable and good mud drainage
The sprockets on this cassette are attached to each other with pins. Sram calls this FULL PIN™ technology. This technology makes the cassette not only light, but also very durable. Because of the open X-DOME™ design mud and other debris can easily be removed. This benefits both shifting and durability.

• Only suitable for the XD™ Driver Body
• Weight according to Sram: 450 grams
• Material: forged steel


Compatible with SRAM XD body
The 12-speed cassette fits the existing XD driver. This means that the distance between the sprockets is reduced and therefore the chain is also narrower. X-Glide 2 is the latest generation of the SRAM X-Glide technology, optimized for the Eagle 12-speed cassette. It delivers fast and precise shifting under load throughout the entire gear range and increases the grip of the chain on the larger sprockets.


SRAM XD(R) body
This cassette only fits an XD(R) body. With this type of body the cassette is a single piece. You slide the cassette over the body and then you can tighten the lockring. When installing an MTB XD cassette on an XDR body, a 1.85 mm spacer should be placed in between.

Mounting with special tools
To assemble and disassemble this cassette you will need specific cassette tools. These can be found here.

Don't forget the assembly grease!
The lockring on your cassette should be tightened up, in most cases up to 40Nm. To be able to loosen the cassette, we recommend you to apply a little bit of assembly paste to the lockring. Our assembly greases can be found here.

User tips

How often should I clean my bike? Regular cleaning ensures that your material lasts longer and that you can enjoy your cycling for longer. How often you need to clean depends on the weather conditions in which you ride. Do you cycle through all kinds of weather, or do you only go out when the sun is shining? It all affects the degree of wear and tear and some people will have to clean their bikes more often than others. Use the schedule below as a guide:

October to March:
• Clean every 200 km
• Rinse after every ride
• Dry and oil the chain after every ride
• Leave the bike to dry at room temperature

April to September:
• Clean every 300 km
• Rinse off after cycling in the rain
• Dry and oil the chain after polishing or rinsing
• Leave the bike to dry at room temperature
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4.7 / 5
Average from 96 reviews
69 reviews
25 reviews
2 reviews
0 reviews
0 reviews

Photos from customers

Most recent reviews

5 / 5

Mantel are trustworthy

- Rodney 7 April 2021

Product is as described on the website

Pros & Cons

Speed of delivery
Workmanship of product

5 / 5

fantastic price, to fantastic components

- João José 4 November 2020

Pros & Cons


5 / 5

Great Service!

- Kris 8 September 2020

Great product! good price, fast delivery, and exactly what I expected!

Pros & Cons

As described
Fast delivery
Good value

5 / 5

Incredible technology upgrade

- Russ 28 July 2020

Coming from the older 2x10 setup the 52t 12 speed cassette is a game changer. The ratios compared to the old tech are barely noticeable so you have the simplicity and reliability of the 12x1 setup, without any loss from the 20 speed setup.

Pros & Cons

Introduction price quite high

4 / 5

It's good but not as easy or reliable as 1 x 11 shimano

- Nigel 27 July 2020

Recommended by the product specialist

All specifications

Manufacturer description

The cassette runs as follows: 10t, 12t, 14t, 16t, 18t, 21t, 24t, 28t, 32t, 36t, 42t and 50t. It is being held together by pins. This FULL PIN™ technology doesn't just make the cassette very light, but highly durable as well. The open X-DOME™ design allows mud and other dirt to quickly fall away. This improves both gear shifts and durability.

The 12 speed cassette is compatible with existing XD drivers. This does mean that the spacing between the cogs has been reduced, thereby also narrowing the chain design. X-Glide 2 is the latest generation of the Sram X-Glide technology, and is optimised for the Eagle 12-speed cassette. It ensures fast and accurate shifts under load across the range of the cassette and enhances the grip of the chain on the larger cogs.