BMX

- Super hardened nylon construction - 40mm diameter, 100mm length - Special insert fits 3/8" or 14mm axles - 90g (pair)

- Super hardened Cr-Mo/Nylon construction - 40 x 100mm - Special insert fits 3/8" or 14mm axles - Diameter: 40mm - 320g (pair) - Material: Chromoly Core w/Nylon Sleeve - Sold in pairs

Black Label's 6061 Sprocket is machined from 1/4-inch thick 6061 aluminum for awesome strength and durability. An adapter for 19mm axles is included.