The Miche system allows for easy changes of cog size - simply undo the lockring, slip the cog off the splined carrier, and stick the new one on. Because the sprockets are not threaded, they are relatively cheap, so it"s worth having a couple of different sizes so you can choose the best to suit riding conditions.

Please note the carrier and lockring are NOT supplied with the cog - order them seperately.

The sprocket is made from hardened nickel-plated steel - we use these a lot and they are pretty hard-wearing!