Disc Brake Hub. Machined from aluminium. Used on the Goblin kit car as a disc brake hub and on the Formula 24/24+ kit car to mount the axle sprocket to the axle and drive wheel to axle. 25.4mm bore. Six holes drilled and tapped M5 on a 44.45mm PCD to standard bicycle disc brake mounting.
Old reference(s): A7, Z26