Surly Single-Speed Kit Spacers and Lockring MFPN=102613518 Front and Rear application Flat

Front and Rear application Flat Protection Sidewall TPI 120 Color Black Weight 849 Defined Color Black ISO Width (mm) 66 ISO Diameter 584 / 650b / 27

SRAM Exogram cranksets with inset nut must use stock fifth bolt + spacer(s)

Material:  7075-T6 aluminum handles

and hardware

Surly Single-Speed Kit Spacers and Lockring MFPN=102613518 Front and Rear application FlatSurly Single Speed Spacer Kit comes with a selection of anodized aluminum spacers so you can get a perfect chainline to complement your road track or mountain crankset. Our large diameter stainless steel Cassette Lockring holds everything together and perfectly matches the outside diameter of the spacers. Plus it matches the machined shoulder of our single speed cassette cogs (not included). The lockring is machined to utilize a common Shimano