microSHIFT Advent MX G-Series 11-Speed SpeedRamp Cassette - Wide Range 11-50T (SRAM XD Driver Interface)

Experience unyielding mechanical strength and ultra-smooth shifting precision across the most demanding singletrack lines with the microSHIFT Advent MX G-Series 11-Speed Cassette. Engineered as the definitive choice for riders utilizing high-performance wheelsets with standard SRAM XD driver freehub bodies, this premium component seamlessly bridges wide-range capability with legendary drivetrain durability. Whether you are building an aggressive trail bike, assembling a remote backcountry bikepacking rig, or putting down high-torque power on a modern electric mountain bike (e-MTB), the Advent MX series delivers a flawless 11-50T gear matrix designed to conquer extreme terrain and grueling vertical ascents.

The core shifting advancement of this G-Series cluster relies on microSHIFT’s proprietary SpeedRamp Technology. The cog teeth and side profiles feature a complex, mechanically clocked matrix of 64 discrete shifting ramps. This structural layout guides the chain quickly, quietly, and precisely up or down the gear steps, completely eliminating the hesitation, skipping, and loud metallic clunking common when shifting standard cassettes under heavy load. To maintain factory-fresh shifting precision and look professional over thousands of trail kilometers, the entire gear cluster receives an industrial Satin Nickel plated finish, providing premium corrosion resistance and drastically reducing visible wear from continuous chain friction.

To safely handle the high-torque output of modern mid-drive e-bike motors and heavy gravity riding, the architecture of the cogs has been fundamentally reinforced. The cog profiles are widened to a robust 1.8mm thickness, and the first seven high-speed cogs (spanning from the 11t down to the mid-range 28t) are constructed from **full premium Chromoly Steel**. This heavy-duty metallurgy delivers an incredible 500% increase in structural lifespan over basic high-tensile steel options, resisting tooth deformation even under full-power pedaling. For added long-term utility, these small high-wear cogs are fully **replaceable**, allowing you to independently service individual gear slots without replacing the entire cluster. The massive 42t and 50t climbing cogs feature specialized aluminum alloy reinforcement to minimize weight while ensuring maximum structural rigidity when pulling up steep wall climbs.

Weighing in at 550 grams, this ultra-stiff cassette mounts cleanly onto any standard XD freehub body, taking full advantage of the secure, unified interface to prevent freehub body gouging and maximize power transfer. Perfectly synchronized to track with microSHIFT Advent MX derailleurs, this 11-speed powerhouse delivers the ultimate balance of bombproof reliability and smooth analog performance.

Key Features

• SRAM XD Hub Compatibility: Engineered with a dedicated mounting interface designed to slide seamlessly onto standard SRAM XD driver freehub bodies


• 64-Lug SpeedRamp Engineering: Mechanically clocked shifting tracks guide the chain smoothly across cogs for lightning-fast, quiet gear changes under heavy load


• Heavy-Duty Chromoly Foundation: Premium, widened 1.8mm chromoly steel cogs (11t to 28t) supply a 500% durability improvement over traditional high-tensile alternatives


• Certified E-Bike Rated Design: Reinforced tooth geometry and robust construction easily handle the unyielding, high-torque output of mid-drive e-MTB motors


• Replaceable Small Cogs: High-speed individual cogs can be serviced independently to dramatically extend the total working lifespan of your drivetrain investment


• Satin Nickel Protection: High-durability industrial surface finish provides relentless resistance against environmental corrosion and minimizes visible chain wear

Specifications

• Model Series: microSHIFT Advent MX G-Series


• Speed System: 11-Speed


• Gear Range Spread: 11-50T Wide Range


• Gear Ratio Combination: 11-13-15-18-21-24-28-32-36-42-50


• Freehub Interface Compatibility: Standard SRAM XD Driver Only (Not compatible with XDR or Shimano HG hubs)


• Drivetrain Component Synergy: Optimized exclusively for microSHIFT Advent MX 11-speed systems


• E-Bike Verification: Fully Rated and Approved for E-Bike / E-MTB Application


• High-Speed Cogs (11t - 28t): Full Heavy-Duty Chromoly Steel (Replaceable)


• Low-Speed Climbing Cogs (42t / 50t): Ultra-Stiff Machined Aluminum / Chromoly Blend


• Spider Matrix: Yes (Stiff Integrated Carrier Spider)


• Cassette Finish: High-Durability Satin Nickel


• Component Weight: 550g

Drivetrain Component Synergy

To ensure absolute indexing precision and maximize the performance of your wide-range 11-50T XD gear cluster, pair this cassette with these matching components:

• Rear Derailleur: microSHIFT Advent MX 11-Speed Clutch Rear Derailleur


• Shifter Configuration: microSHIFT Advent MX 11-Speed Trail Trigger


• Chain Compatibility: High-quality 11-speed chains optimized for e-bike torque standards and wide-range articulation

A professional-grade, wide-range 11-50T 11-speed mountain bike cassette merging advanced SpeedRamp molecule shifting with reinforced chromoly cogs and an XD driver interface, engineered for trail, enduro, and e-MTB riders who demand ultimate drivetrain durability.