Best Motorcycle Spark Plugs

There was a time when spark plugs required constant maintenance or replacement. With improvements such as electronic fuel injection, cleaner burning fuels and more exotic metals such as iridium and platinum, modern spark plugs can last much longer than they used to, with service life stretching to 80,000 miles or more. These technological advances mean these are the best motorcycle spark plugs ever manufactured, and we benefit in several ways when it’s time to upgrade.

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