Surly Single-Speed Kit Spacers and Lockring Model-Tubeless 45 Kit Can be upgraded to a

Can be upgraded to a power meter

Light and strong

Increasing the overlap will provide additional cushion

}Vittoria Terreno Dry Tire - 700 x 38 Clincher Folding Black/Tan G2

Chainline - varies by which spider you choose

Surly Single-Speed Kit Spacers and Lockring Model-Tubeless 45 Kit Can be upgraded to aSurly 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