Bicycle Sprocket 32-38T For M6100 / 7100/8100/9100 36T : Made of high quality aluminum, which is resistant to damage and durable Precision anode machining galvanic filtering, accuracy measurement accuracy , , not faded and are gentle on the filter Narrow, wide mechanism design that strengthens the connection to the chain, thanks to the fact that each patient can be fully inserted into the current one, ensures permanent maintenance of the current one, increases the intensity of playback and noise Setting in assembly and fits perfectly to the bike It has applies and simple appearance, and also improves speed! - Inner mesh panties Material: Aluminum Alloy Teeth size: 32 T / 135 mm, : 68g Teeth size: 34 T / 144 mm, : 76g Teeth size: 36 T / 151 mm, : 84g Teeth size: 38 T / 160 mm, : 92g Speed: 12 speeds contains: 1 Sprocket