Oset 16.0 up to 2012 the rear wheel had sprockets with 90 teeth. These need narrow chains, narrow sprockets and narrow chain locks. from 2012 the rear wheel had sprockets with teeth. These need wide chains, wide sprockets and wide chain locks.
Oset 12.5 up to 2014 the rear wheel had sprockets with 90 teeth. These need narrow chains, narrow sprockets and narrow chain locks.
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