If you're fed up of smashing your chain on rails, ledges and scooters then the BSD guard sprocket is for you, tough 7075 alloy and a no frills classic 5-spoke design
Fully 3D CNC'd bashguard sprocket
Super tough 7075-T6 construction
Offset design for better chain aligment
Centre hole 15/16, supplied with both 19mm and 22mm top hat washers to fit all cranks