Cassette Microshift ACOLYTE 8-speed steel 12-15-18-21-24-28-34-42, black

The Microshift ACOLYTE 8-speed steel cassette with sprocket sizes 12-15-18-21-24-28-34-42 in black is a replacement drivetrain component engineered for 8-speed systems. Constructed from steel, the cassette delivers durable tooth profiles and consistent shifting across a broad 12–42T range, providing low gears for steep climbs and higher gears for flats. It is intended for use with ACOLYTE drivetrains and compatible 8-speed freehub bodies on mountain, gravel or rugged touring bikes where longevity and robust performance are priorities.

Advantages

The steel construction offers increased wear resistance and a longer service life compared with softer alloys, while the stepped sprocket progression ensures predictable gear changes and manageable cadence control across varied terrain. The wide 12–42T spread gives a large overall ratio range without requiring special hub spacing, and the black finish reduces visible corrosion and integrates visually with dark drivetrains.

Suitable for

• Mountain biking on mixed or steep terrain
• Gravel riding and adventure cycling
• Long-distance touring with varied loads
• Replacement on 8-speed bikes requiring robust, long-lasting cassettes

Key specifications

• Speeds: 8-speed
• Sprocket sizes: 12-15-18-21-24-28-34-42 teeth
• Material: steel sprockets
• Finish: black
• Compatibility: 8-speed freehub bodies and ACOLYTE drivetrains
• Gear range: wide 12–42T ratio for climbing and cruising

How to use

Install the cassette onto a compatible 8-speed freehub body using the correct lockring torque and standard cassette tools. Ensure the freehub and hub bearings are clean and lightly greased where appropriate, then fit the sprockets in the correct orientation and tighten the lockring to the manufacturer’s recommended torque. Adjust derailleur limit screws and cable tension after installation to achieve precise indexing across all eight gears. Regular inspection of tooth wear and drivetrain alignment will help maintain smooth shifting.

Usage recommendations

For optimal longevity, pair the cassette with a compatible 8-speed chain and maintain a regular lubrication and cleaning schedule. Replace the chain at recommended wear intervals to prevent accelerated sprocket wear. When riding in wet or muddy conditions, rinse and re-lubricate the drivetrain to reduce corrosion and abrasive wear.