FE-SSK (Single Speed Kit)

The FireEye SSK (Single Speed Kit) converts a standard 8/9-speed shimano-splined cassette hub to a single speed hub in a snap. The SSK comes with two (12/13T,14/16T, or 16/18T) cogs, 3 different sized alloy spacers to provide proper chainline alignment, and a lock ring to keep everything locked down tight. You'll be pleasantly surprised how easy and enjoyable a single speed can be.

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Kit Includes: 3 different sized threaded spacers, 2 cogs, and lockring
Cog Options: 12t and 13t cogs  (3mm thick, only for single speed chain)
                      14t and 16t cogs  (2.3mm thick, within 7 speed chain)
                      16t and 18t cogs  (2.3mm thick, within 7 speed chain)
Colors: Black, Green, Orange, Red, and Pink with polished cogs and a lockring
Surface finish: polished and anodized