New in the box Shimano SF-MX30 freewheel for BMX. This is an 18 tooth so good for a cruiser, be it 24″ or 26″. Using a 41 or 39 front sprocket respectively will give you similar ratios to a 44/16 on a 20″ BMX.
Suitable for both 1/8 and 3/32 chains so no worries about compatibility.
Brand new and still in the box.
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