Description
The Sunrace CS-M980 M9 9-speed wide-ratio cassette is a versatile 11-40T option for gravel, city, e-bike, kids, and MTB use. It gives riders a broader gear range for climbing while keeping enough top-end speed for flatter sections.
Sunrace CS-M980 M9 9-speed wide-ratio cassette
This cassette uses the M9 group design and fits HG-Spline freehub bodies. It comes in ED Black and uses a steel spider plus steel lockring for strength. SunRace lists the weight at 491 g, which keeps it light for a wide-range 9-speed cassette.
Performance and gearing
The 11-40T range helps riders manage steep climbs without losing practical cadence control on the flats. SunRace pairs the cassette with a gear progression of 11-13-15-18-21-24-28-34-40T. That spacing gives smooth transitions and good control across mixed terrain.
Build and use case
This cassette suits riders who want durable steel construction and simple installation on Shimano or SRAM-compatible HG systems. It also works well for 9-speed drivetrains on gravel, city, e-bike, kids, and mountain bikes. Therefore, it offers a strong balance of value, range, and everyday reliability.
