The Microshift Advent MX Pro 1x11Sp 3 Piece Groupset 11-50T is a completely reimagined, heavy-duty drivetrain designed to handle the absolute hardest ten percent of riders. Built specifically for aggressive mountain biking, demanding trail sessions, and high-torque electric bikes, this three-piece upgrade kit strips away unnecessary complexity to deliver unparalleled mechanical reliability. By focusing strictly on robust engineering rather than proprietary, fragile standards, Microshift has created their most robust and high-performing drivetrain to date, offering riders an accessible path to elite-level single-chainring performance.
At the heart of this groupset is the ultra-durable Advent MX G-Series 11-speed cassette. Featuring innovative SpeedRamp technology that utilizes 64 discrete shifting ramps, the system guides the chain across its massive 11-50T range with whisper-quiet precision, even when changing gears under heavy climbing loads. To dramatically increase longevity, the first seven cogs (spanning 11t to 28t) are constructed from full chromoly steel with extra hardening, yielding a staggering 500% increase in durability over conventional high-tensile steel cassettes. This means you can grind up steep Aussie inclines without prematurely wearing down your gear profile.
Controlling the movement is the Advent MX Pro rear derailleur and the highly tactile Trail Trigger shifter. The derailleur is engineered around a beefy horizontal parallelogram that isolates shifting action from vertical trail chatter, supported by premium IGUS bushings at the pivots and an upgraded clutch mechanism that boasts 33% stronger force than previous iterations. This provides rock-solid chain retention over rock gardens, virtually eliminating dropped chains. At the handlebar, the revised shifter reduces internal dead play to slash engagement time from 12 degrees down to a sharp 3 degrees. With 12mm of lateral adjustment on its removable clamp, the lever can be perfectly positioned to clear any brake setup.
SpeedRamp Technology: Features 64 precision-engineered shifting ramps across the cogs to ensure lightning-fast, quiet gear transitions under heavy torque.
Hardened Chromoly Cogs: The primary 11-28t cogs are machined from ultra-hard chromoly steel, offering a 500% durability boost that easily handles high-torque e-bike demands.
33% Stronger Instant Clutch: A revised, heavy-duty clutch assembly eliminates chain slap and dropped chains, engaging silently and instantly over rough singletrack.
4x Faster Shifter Engagement: Upgraded shifter internals reduce mechanical play to a tiny 3-degree throw, providing instantaneous, clicky shifting response.
Replaceable Derailleur Cage: Designed with long-term ease of ownership in mind, allowing you to swap out a damaged cage after a heavy crash rather than replacing the entire derailleur.
| Attribute | Specification |
| Speed | 11-Speed |
| Gearing Range | 11-50T (11-13-15-18-21-24-28-34-40-45-50T) |
| Components Included | Rear Derailleur, Right-Hand Trigger Shifter, Cassette |
| Freehub Compatibility | Standard Shimano HG Spline Body |
| Derailleur Weight | 358g |
| Cassette Weight | 436g |
| Clutch Type | Heavy-duty ratchet-and-pawl with IGUS pivot bushings |
| Shifter Adjustment | 12mm lateral clamp adjustment |
✓ E-Bike & Heavy Trail Rated: The reinforced chromoly construction and robust tooth profiles make it ideal for the extreme forces of mid-drive electric mountain bikes.
✓ Hassle-Free Freehub Fitment: It mounts straight onto a standard, ubiquitous HG freehub body, saving you from purchasing expensive, proprietary hub drivers.
✓ Unmatched Chain Retention: The combination of a horizontal-only derailleur path and a 33% stronger clutch keeps your chain glued to the chainring over aggressive drop-offs.
✓ Highly Customisable Cockpit: The shifter’s 12mm of lateral adjustment lets you position the levers perfectly around modern, bulky hydraulic brake reservoirs.
✓ Budget-Friendly Maintenance: With individually replaceable small cogs and a fully modular derailleur cage, keeping this groupset running long-term costs a fraction of premium alternatives.
❌ No Crankset Included: This is a 3-piece groupset containing the cassette, shifter, and rear derailleur; you will need to purchase a compatible 1x crankset and 11-speed chain separately.
❌ Weight Weenie Drawback: Because it prioritises extreme physical durability and steel cogs over carbon fiber, it is heavier than pure, premium cross-country racing groupsets.
❌ Strict Brand Ecosystem: The specialized 3-degree actuation design means the Advent MX Pro shifter and rear derailleur must be used together and will not index with Shimano or SRAM shifters.
When installing the Advent MX Pro rear derailleur, pay close attention to the unique cable redirection pulley. This low-friction pulley allows for an incredibly direct cable path which significantly reduces shift-lever tension. To keep that ultra-sharp 3-degree shifting response feeling crisp, avoid using generic inner cables; instead, pair the groupset with a high-quality, pre-stretched, slick-coated premium derailleur cable and fresh outer housing right from day one!
