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Leisure Lakes Bikes£129.99Visit shop Twenty21 12 Speed Cassette Microspline 10-52T Silver
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The Twenty21 12-Speed Cassette is designed for mountain bike enthusiasts looking to upgrade their drivetrain for maximum versatility on varied terrain. It provides a massive 10-52 tooth range that allows for effortless climbing on steep grades while maintaining speed on descents, though it is specifically engineered for Shimano Microspline hubs, limiting its compatibility with traditional HG freehubs.
| Model Part Number | TW21-CS-MS-12-1052-21 |
|---|---|
| Brand | Twenty21 |
This cassette is designed for Shimano Microspline hubs; while it may index with some 12-speed systems, it is optimized for Shimano Microspline setups.
No, this cassette requires a Shimano Microspline freehub body.
The Twenty21 12-Speed Cassette weighs approximately 554g.
The cassette is constructed as a unit; for best performance, replace the entire cassette when teeth show significant wear.
You will need a standard cassette lockring tool and a torque wrench.
Adjust the B-tension screw on your rear derailleur to increase clearance between the jockey wheel and the largest sprocket.
Ensure the lockring is tightened to the recommended torque specification and check that all splines are properly aligned.
Check your derailleur hanger for alignment and adjust your cable tension using the barrel adjuster.
To install this cassette, ensure your wheelset is equipped with a Shimano Microspline freehub body. Slide the cassette onto the splines and tighten the lockring to the manufacturer's specified torque rating using a standard cassette lockring tool. Because this is a wide-range cassette, verify that your 12-speed rear derailleur has enough B-tension adjustment to clear the 52T sprocket. For maintenance, keep the cassette clean of excess trail grit and apply a high-quality bicycle chain lubricant regularly to reduce friction and wear between the steel and alloy sprockets.
