MTB CASSETTES

MTB 12sp Cassettes

We carry the best MTB Cassettes from SRAM and Shimano. Both SRAM and Shimano cassettes provide crisp factory precision in the longest lasting designs. 3rd party cassettes tend to have longevity and shift quality issues, so it makes sense to stay with the factory 12sp options!

Within each brand, ie SRAM wtih SRAM, you can mix and match rear derailleurs, shifters, cassettes & chains. Riders may move up or down depending on budget, or sometimes for preferred color.

Replacing your cassette? Chat with our team why replacing the Cassette, Chain and Chain Ring as a group will provide you the best performance throughout the life cycle of the products.

Questions? Not sure which is the best for your riding? No problem. Chat with our team to get the right cassette for your setup.

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Compare XX1, X01 and GX Cassette Details

Let’s take a quick look at the SRAM Cassette lineup and touch on the details between 10-52t & 10-50t as well as how the machined (XX1 & X01) versus stamped and pinned (GX) cassettes match up!

10-52t compared to 10-50t

SRAM cassettes are offered in both 52t and 50t options.

The larger 52t cassettes require AXS or the 520% rear derailleurs.

As expected the machined 52t cassette options weigh in approximately 12g more than the 50t models. The image above shows how the 52t (left) cog has been redesigned with less “rays” with an additional “circle” support on the pin radius of the machined cogs.

Since the second smallest cog is 42t on both options you can expect slightly faster shifting with the 50t option. It’s a good practice to “clutch” shift into the largest ring on your cassette to minimize premature wear.

Machined versus Stamped & Pinned Manufacturing

If you compare the SRAM cassette lineup you’ll note that the XX1 XG-1299 and XO1 XG-1295 have the 10-42t, or bottom 11 speeds, made of a one piece machined block steel. A titanium nitrite surface treatment that helps reduce friction with the chain and thus improves the cassette’s service life.

The GX XG-1275 cassette instead utilizes cogs made of stamped steel. These individual cogs are then connected with stainless pins visible from both the front and rear of the cassette.

Machined versus Stamped & Pinned Weight

Looking at the weight difference between the machined XX1 and X01 cassettes compared to the stamped and pinned GX you’ll find a notable difference.

The52t  XX1 Copper Cassette weighed in at 374g while 52t GX cassette came in 81g heavier at 455g. This translates to a 0.18lb difference.

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Let’s take a deeper look at the Shimano and SRAM cassettes.

Both the 12sp Eagle as well as the 12sp HyperGlide+ from Shimano are interchangeable within their branded groups. ie, a XX1 chain paired with a GX cassette and XO1 derailleur will perform fine. SRAM with SRAM and Shimano with Shimano is a safe bet.

SRAM Eagle Cassettes

SRAM cassettes are available in 4 levels – 3 of which utilize the XD driver. All SRAM Eagle cassettes are meet the durability requirements for eMTB riding.

NX PG-1230 Cassette

SRAM NX cassette rear profile view

SRAM NX PG-1230 11-50t
SRAM Part Number: 00.2418.086.000

The SRAM NX PG-1230 Cassette is an 11-50t cassette. Designed for maximum value this is a pinned carrier design.

The NX is unique in the 12sp cassettes as it runs on the previous 8, 9, 10 speed HG driver.

The remainder of the SRAM cassettes require the XD Driver. SRAM Eagle Cassettes for the XD driver are available with a 50t as well as a 52t max gear. The larger cassette requires the larger capacity rear derailleur 52t Max.

XD Driver

GX XG-1275 Cassette

GX cassettes are pinned stamped steel cogs.

GX Cassette

SRAM GX XG-1275 10-50t
SRAM Part Number: 00.2418.078.000

SRAM GX XG-1275 10-52t
SRAM Part Number: 00.2418.109.000

X01 XG-1295 Cassette

XO1 cassettes come in 3 offerings.

XO1 cassette

SRAM XO1 XG-1295 10-52t
SRAM Part Number: 00.2418.108.000

SRAM XO1 XG-1295 10-50t, Polar Grey
SRAM Part Number: 00.2418.099.000

SRAM XO1 XG-1295 10-50t, Black
SRAM Part Number: 00.2418.071.000

All XO1 cassetes feature an aluminum largest cog and Ti-Nitride surface treatment to improve service life.

XX1 XG-1299 Cassette

XX1 cassettes are available in 50t and 52t options in a handful of colors.

Rainbow AXS cassettes are available in both 50 and 52t.

XX1 Rainbow AXS Cassette

SRAM XX1 XG-1299 10-52t, Rainbow
SRAM Part Number: 00.2418.107.002

SRAM XX1 XG-1299 10-50t, Rainbow
SRAM Part Number: 00.2418.098.000

Gold XX1 XG-1299 cassettes are also available in 50 and 52t.

XX1 Gold Cassette

SRAM XX1 XG-1299 10-52t, Gold
SRAM Part Number: 00.2418.107.001

SRAM XX1 XG-1299 10-50t, Gold
SRAM Part Number: 00.2418.072.000

The latest XX1 color Copper is available in a 52t cassette

XX1 Copper Cassette

SRAM XX1 XG-1299 10-50t, Gold
SRAM Part Number: 00.2418.107.000

Shimano 12sp Cassettes

The Shimano 12sp cassettes utilize the MicroSpline driver.

MicroSpline Driver Assembly

Deore CS-M6100 Cassette

Deore M-6100 12sp Cassette

Shimano Deore CS-M6100 12sp Cassette 10-51t
Features all steel cogs for great longevity.

Shimano Part Number: ICSM610012051

SLX CS-M7100 Cassette

SLX M-7100 12sp Cassette

The SLX 12sp cassettes are available in a 10-51t or a 10-45t option. SLX cassettes meet the requirements for eMTB riding.

Shimano SLX CS-M7100 Cassette, 10-51t
Shimano Part Number: ICSM7100051

Shimano SLX CS-M7100 Cassette, 10-51t
Shimano Part Number: ICSM7100045

XT CS-M8100 Cassette

XT M-8100 12sp Cassette

Like the SLX cassettes the XT M7100 cassettes are available in 51t or 45t sizes and meet the requirements for eMTB riding.

Shimano XT CS-M8100 Cassette, 10-51t
Shimano Part Number: ICSM8100051

Shimano XT CS-M8100 Cassette, 10-45t
Shimano Part Number: ICSM8100045

Questions on which 12sp mtb cassette is right for your setup? No problem. Hit us on the web chat, via email or call 949-470-1099 and we can get you the right parts for your repair headed to you ASAP.

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