KMC Z510H Drop Buster Orange & Black 1/2" x 1/8" Track/BMX/Single Speed Chain. * For BMX,Fixies, Cruisers, Track, All Types of single speeds, Stretch proof, mushroom pin, DropBuster Technology. * Drop Buster - This is a perfect chain for racing track and Heavy Duty BMX use, the tensile strength is a outstanding @ 1,200Kg. * Bestseller in the BMX Freestyle world, but it is also becoming very popular in the mid-high end range internal gear hub equipped bikes. * Orange & Black Colors adds style to fixies, cruisers and kids bikes as well.