This muc off chain cleaning kit banishes grime from your chain with minimal effort easy cleaning in just four simple steps this muc off chain cleaner will revive grimy chains in just 19 seconds the mechanism works by clipping over the chain and combining heavy duty rotating brushes with the awesome power of muc off chain cleaner for mess free easy application step 1 position bike upright or mount to workshop stand shift chain to the middle front chain ring and third smallest rear gear for