Shimano 105 FC-RS520 Crankset - 175mm 12-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK MFPN=CSM980.9AX0.NS0.BX Designed for Reduced rolling resistance

Designed for Reduced rolling resistance thanks to the Corsa-inspired slick center strip

Unique design means more sealant remains after installation

Bag Attachment Velcro Color Steel Volume 2L Waterproof Yes Primary Color Blue

SRAM Model ID: FS-LYRK-ULT-D1

Cleat Compatibility Keo Color Black Pedal Material Composite Spindle Material Stainless Steel Pedal Weight 320g Primary Color Black

Shimano 105 FC-RS520 Crankset - 175mm 12-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK MFPN=CSM980.9AX0.NS0.BX Designed for Reduced rolling resistanceThe Shimano 105 FC RS520 is a 2 piece 4 arm crank that's compatible with modern disc brake road frames. 4 arm crankset for 12 speed drivetrain Compatible with frames of O. L. D. 135mm and 410mm chainstay length 44. 5mm chainline 150mm Q factor Compatible with HG 12 speed chains Color Black Rings 50 34 Number of Chainrings Double Crank Length (mm) 175 Crank Intended Use Road Drivetrain Speeds 12 BB Included No Pedal Spindle 9 16" Spindle Interface Type