Surly Single-Speed Kit Spacers and Lockring MPFN-TF21010 } Specifically designed to install

} Specifically designed to install and remove BB386EVO/MegaEvo threaded bottom brackets

Rear shifter is compatible with Shimano derailleurs

(mm) 12 Manufacturer Number 6901 Material Steel Thickness 6

Rapid Recovery allows the shock to recovery faster between consecutive bumps letting the wheel track the ground with greater precision

Precise and reliable trigger shifter is great for repairs or upgrades

Surly Single-Speed Kit Spacers and Lockring MPFN-TF21010 } Specifically designed to installSurly Single Speed Kit Spacers and Lockring. Surly 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