SunRace CSMZ903 Cassette - 12-Speed 11-51t Metallic Silver Model=Clamp Bands These wheels combine top-end materials

These wheels combine top-end materials and a methodical build

Shimano Deore LX M580/T671 9/10-Speed Chainrings

Neoprene anti-slip on the inside

Ring Position/Type Single Tooth Count 32 Round or Oval Round Drivetrain Speeds 12 Chainring BCD 104 Material Aluminum Defined Color Black

SunRace CSMZ903 Cassette - 12-Speed 11-51t Metallic Silver Model=Clamp Bands These wheels combine top-end materialsSunRace CSMZ903 Cassette 12 Speed 11 51t Metallic Silver. The SunRace MZ 12 Speed Cassette offers a wide ratio design. TECH SPECS Color Metallic Silver Range 11 51 Cassette Cogs 11 13 15 17 19 21 24 28 33 39 45 51 Cassette Body Type Shimano SRAM 8 9 10 Speed Drivetrain Speeds 12 Weight 497 Defined Color Silver