This is a perfect chain for racing and Heavy Duty BMX use, the tensile strength is a good 1,200 Kg. It can be used on almost every front sprocket and rear freewheel/Cog. Light but strong, this chain is a bestseller in the BMX Freestyle world, but it is also becoming very popular in the mid-high end range internal gear hub equipped bikes, because of it's long life and high reliability.