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Old March 21st, 2020, 01:10 AM   #1
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[kropotkin thinks...] - Tech Briefs: Chatter, Or When Harmony Overwhelms A Motorcycle

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If you eavesdrop on a rider and his team debriefing in a garage during a session youíll invariably hear a comment about chatter. Itís the oldest enemy for a rider because it robs confidence. With the bike moving underneath them they canít open the throttle and the problem exaggerates the longer it continues.

But what exactly is chatter? Itís a harmonic imbalance created by vibrations and frequencies on a motorcycle. Man and machine need to be in perfect harmony to go racing but sometimes itís the imperfect harmony of frequencies can upset everything for them.

"The word chatter gets used a lot, but a lot of the time, it's not strictly accurate," says former Moto2 crew chief and technical expert Peter Bom. "It's applied to everything which shakes and vibrates, but in the original sense, chatter was caused by the front or rear tyre (or both). Improved tyre construction has eliminated a lot of what used to be called chatter."

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