microSHIFT Advent MX G-Series 11-Speed Alloy SpeedRamp Cassette - Wide Range 11-50T

Experience the pinnacle of mechanical durability and smooth shifting performance under extreme trail loads with the microSHIFT Advent MX G-Series 11-Speed Cassette. Engineered as the most robust and highly refined cassette in microSHIFT's history, the Advent MX series is purpose-built to conquer the aggressive demands of modern mountain biking, remote backcountry bikepacking, and high-torque electric mountain bikes (e-MTBs). Featuring an expansive, wide-range 11-50T gear spread, this premium 11-speed component delivers the ideal climbing gear ratios needed to clear steep, technical singletrack ascents while maintaining crisp, tightly spaced mid-gears for fluid speed management on flat transitions and fast descents.

The defining shifting advancement of the G-Series cassette is microSHIFT's proprietary SpeedRamp Technology. The gear cluster architecture features a series of 64 discrete shifting ramps and precision-shaped tooth profiles meticulously clocked across the face of the cogs. This engineered matrix guides the chain quickly, quietly, and flawlessly up or down the cassette, entirely eliminating the loud clunking and hesitation common with standard cassettes when shifting under heavy load. To ensure long-term premium aesthetics and smooth mechanical operation, the entire cluster is treated with a technical Satin Nickel plated finish, providing highly effective corrosion resistance and dramatically reducing visible wear from chain friction over time.

To withstand the intense torque profiles of modern mid-drive e-bike motors, the material composition of the cogs has been fundamentally upgraded. The lower cog profiles have been widened to a beefy 1.8mm thickness, and the first seven cogs (spanning from the high-speed 11t down to the mid-range 28t) are constructed from **full premium Chromoly Steel**. This heavy-duty metallurgy delivers a massive 500% increase in structural lifespan compared to typical high-tensile steel cassettes, resisting tooth deformation even under unyielding e-bike turbo modes. To further prolong your drivetrain investment, these small high-wear cogs are fully **replaceable**, allowing you to swap out worn gear positions without purchasing a completely new cassette.

While engineered for absolute bombproof strength where it matters most, the Advent MX cassette maintains a competitive weight of just 485 grams. This is achieved by utilizing an integrated carrier spider structure and machining the massive 42t and 50t climbing cogs from high-strength, lightweight aerospace aluminum alloy. Designed for maximum frame and wheel compatibility, the cassette mounts seamlessly to any standard HG (Hyperglide) cassette freehub bodies, eliminating the need to source proprietary hub drivers. Perfectly synchronized to track with microSHIFT Advent MX shifting systems, this 11-speed powerhouse sets a new benchmark for worry-free trail performance.

Key Features

• 64-Lug SpeedRamp Engineering: Proprietary mechanical shifting tracks guide the chain seamlessly across cogs for lightning-fast, ultra-quiet gear changes under load


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


• Certified E-Bike Rated Design: Robust structural layout and reinforced tooth geometry easily withstand the continuous, high-torque output of mid-drive e-MTB motors


• Lightweight Carrier Spider: Lower gear clusters are anchored to a stiff structural spider, reducing rotational weight while preventing freehub notch gouging


• Replaceable Small Cogs: High-speed individual cogs can be serviced independently to extend the working lifespan of the entire drivetrain cluster


• Satin Nickel Protection: Industrial-grade surface finish provides relentless resistance against environmental corrosion and minimizes visible chain friction 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 Shimano-style HG (Hyperglide) Freehub Bodies


• 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-Lightweight Machined Aluminum


• Spider Matrix: Yes (Integrated Aluminum Carrier)


• Cassette Finish: High-Durability Satin Nickel


• Component Weight: 485g

Drivetrain Component Synergy

To secure perfect indexing precision and maximize the capabilities of your wide-range 11-50T gear cluster, pair this G-Series cassette with the following matching components:

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


• Shifter Configuration: microSHIFT Advent MX 11-Speed 


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

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