➤Cost-effective choice: Our 9 speed 11-30T bicycle cassette is made of excellent quality steel material, which is resistant to corrosion, rust, high durability, good impact resistance, high tooth shape precision, lost tooth design, strong compatibility, making riding more possible
➤Features: Provides fast and accurate index conversion function through special tooth shape and ramps, ensuring smooth acceleration and precise positioning within the 9-speed range, whether you are dealing with steep climbs or bumps on flat roads, this bicycle cassette can provide efficient power transmission and reliable shifting
➤Personalized design: High-precision HG internal thread ensures perfect connection with the bicycle wheel hub. Smooth rotation, easy installation and maintenance. Hollow technology can appropriately reduce weight, making driving easier and quieter
➤9-speed 11-30T road bike cassette gear ratio: 11-13-15-17-19-21-23-25-30T;weight:296g