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Motocross Action Magazine
motocrossactionmag.com > mxa-speed-secrets-untold-story-of-sprockets

MXA SPEED SECRETS: UNTOLD STORY OF SPROCKETS

1+ week, 5+ day ago   (309+ words) By the 1980s, 7075-T6 aluminum, an aged MgZn2 alloy, began to be widely used. This material offers significantly greater hardness, tensile strength and yield strength compared to earlier alloys. It remains the benchmark material for high-performance aluminum rear sprockets today. For high-powered bikes,…...