SunRace CSMZ903 Cassette - 12-Speed 11-51t Metallic Silver CheckoutTitle=Cane Creek Hellbender 70 Headset ZS44/28.6 EC44/40 BB Included No Chainline/Hub Compatibility MFPN=F5212 Color:RM2+3 Speed w/Binding 386 EVO Thread Together MOG0539

SunRace CSMZ903 Cassette 12 Speed 11 51t Metallic Silver CheckoutTitle=Cane Creek Hellbender 70 Headset ZS44 28.6 EC44 40 BB Included No Chainline Hub Compatibility MFPN=F5212 Color:RM2+3 Speed w Binding 386 EVO Thread Together MOG0539 BB Included No Chainline Hub Compatibility 130 Hubs Chainline Hub Compatibility 135 142 Road Disc Hubs < 415 mm Chainstay Chainring BCD 110 Color Black Crank Intended Use Cyclocross Crank Length (mm) 170 Defined Color Black Drivetrain Speeds 11 Drivetrain Speeds 10 Number of Chainrings Chain Retaining Single Pedal Spindle 9 16" Rings 42 Spindle Interface Type SRAM Truvativ GXP keyword search CX1 From its massive 520% gear range the 52 tooth cog steps down with improved gear progression with 44 and 38 tooth cogs in the low end (compared to the Eagle drivetrain 10 52 tooth cassette)