Or as low as 
Sram SX PG-1210 MTB Cassette – 12 Speed
SX Eagle™ continues to expand the Eagle™ ecosystem. Now from SX to XX1, you can mix and match any components to find the perfect mix, price or look you are trying to achieve on your bikes.
Features
- Works with low-cost wheels that have splined 8/9/10sp driver bodies.
- Continue the strong Eagle™ silhouette through your entire line.
- Enough range to ensure you don’t need a double.
Specification
- Speed: 12
- Ratio: 11-50T (11,13,15,17,19,22,25,28,32,36,42,50)
- Finish: Black
- Technology: PG
- Weight – 640g
