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Ultegra Di2 6770
Chain: SRAM GX Eagle Chain
Puncture Resistant:K2
28 1/2″ Pump Height
Our most popular and versatile model
NEW Surly Single Speed Spacer Kit Surly Single-Speed Kit, Spacers and Lockring height_5ft-07in Ultegra Di2 6770Surly 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
