Quick Summary
The SunRace CSM680 8AX is an 8-speed bike cassette with an 11-40T range and a black finish. Its eight cogs provide a spread of gear choices; confirm the cassette matches the bike’s drivetrain before selecting it.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Model | CSM680 8AX, identified as the SunRace CSM680. |
| Speed and range | 8-speed, 11-40T. Check that the bike’s drivetrain is designed for an 8-speed cassette and this range. |
| Cog sizes | 11, 13, 15, 18, 22, 28, 34, and 40 teeth. |
| Color and quantity | Black; the listing specifies one item. |
What to Compare Before Buying
Check the exact cassette interface and freehub compatibility for the rear wheel, along with the shifter and derailleur requirements for an 8-speed, 11-40T cassette. Do not assume that matching the speed count alone confirms fit.
Compare the listed cog progression with the gearing you want. The cassette’s range describes its smallest and largest cogs; the bike’s overall gearing also depends on its other drivetrain components.
Compatibility, Size and Fit
Confirm compatibility with the specific wheel and drivetrain configuration. If replacing a cassette, check the bike or component specifications for the supported cassette type and range before choosing this model.
Before You Decide
Confirm the CSM680 8AX model, 8-speed setup, 11-40T range, and compatibility with the bike’s wheel and drivetrain.
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