Shimano 105 FC-RS520 Crankset - 172.5mm 12-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK MPFN-SCO020290S0100 }Surly Track Cog 1/8'' X

}Surly Track Cog 1/8'' X 15t Silver

Diameter 20in Brand Sun Ringle Model Rhyno Lite XL ISO 406 ID Width 23

}Industry Nine A35 Stem - 40mm 35 Clamp +/-8 1 1/8" Aluminum Black

Color Black Crank Length (mm) 165 Defined Color Black Designed for ebike Yes Pedal Spindle 9/16" Spindle Interface Type ISIS

}TRP R2 Disc Brake Rotor - 203mm 6-Bolt 1

Shimano 105 FC-RS520 Crankset - 172.5mm 12-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK MPFN-SCO020290S0100 }Surly Track Cog 1/8'' XShimano 105 FC RS520 Crankset 172. 5mm 12 Speed 50 34t 110 Asymmetric BCD Hollowtech II Spindle Interface Black. The Shimano 105 FC RS520 is a 2 piece 4 arm crank thats 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 TECH SPECS BB Included No Chainline Hub Compatibility 135 142