MICHE Pista Track cogs are splined to match the Miche Pista Cog Support that threads onto the hub (available as a separate item). This system makes it easier to change gearing and reduces possible damage to the hub threads by the threading and unthreading normally required with track use. To be used with 1/8 inch pista/track chain.
Track Cog sprocket sizes available are: 14T-15T-16T-17T-18T
Please note that the Miche Pista Cog Support and a lockring is required to use this product, these items are sold separately.