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Home Motorcycle Spare Parts AJS Stormer 250/370/410 Section B - Gearbox MAINSHAFT + GEARS SPROCKET G/BOX 18T 428
This sprocket is primarily used for road racing and road use. You will need a matching 428 rear sprocket and chain.It is a larger diameter then the 13T 520 sprocket. Fits: Starmaker and all Stormer