The Walla sprocket from BSD is a simple solid design made from tough 7075 aluminium with a brick pattern design.
Fully 3D CNC’d dual thickness sprocket
– Super tough 7075-T6 construction
– 8mm thick at the edges for strength
– Tapers to 6mm at the center to save weight
– Centre hole 15/16″, supplied with both 19mm and 22mm top hat washers to fit all cranks.