I hope they use electic motorcycles. I can remember when riding my bike to work in Seattle, whenever I'd spot a car idling at the curb, I'd take a deep breath and hold it til I got well past. Taking a deep gulp of exhaust when you really need the oxygen is a drag.

And to have several motorcycles in front of you for much of a marathon, holy $h!t in the air, batman.

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1986 300SDL, 362K
1984 300D, 138K