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What that knocking sound in your engine really means
That rhythmic knock under the hood could mean five very different things.
Few things satisfy motorcycle enthusiasts more than hearing a beautiful engine, whether it's cruising the interstate or tearing up the track, and few motorcycle engine sounds are as instantly ...
AutoWeek Motorsports Editor Mac Morrison and IndyCar Series correspondent Curt Cavin take one last look at the field for this year's Indianapolis 500 before the green flag flies on Sunday, May 25.
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