The Campagnolo Chorus Cassette 11-25t 10 Speed is a high-quality cycling component designed for road bikes. This set includes a lockring for secure installation and features a 10-speed gear ratio with a largest sprocket of 25 teeth and a smallest sprocket of 11 teeth. The Campagnolo brand is known for its precision engineering and durability, making this cassette a reliable choice for cyclists looking to upgrade their bike's performance on the road.