Vernier Sprockets Relevance Price: Low - High Price: High - Low Alphabetically: A - Z Alphabetically: Z - A 12T Rudge Magneto Vernier Sprocket £76.00 15T Norton Magneto Vernier Sprocket £76.00 16T Norton Magneto Vernier Sprocket £76.00 Regina Magneto Chain for Norton Singles £19.50