The Sunrace Wide Range MTB Cassette 11-40T 10 Speed Steel Spider is designed for mountain bikers seeking versatility and durability. With an impressive 11-40T gear ratio, this cassette allows for smooth transitions across various terrains, making it ideal for both climbing steep hills and descending with confidence. Constructed from robust steel, it ensures longevity and reliable performance, while its lightweight design contributes to overall bike efficiency. Compatible with 10-speed MTB drivetrains, this cassette is a perfect upgrade for riders looking to enhance their cycling experience.