Here's What Overhead Cams Look Like At 14,200 RPM

This video shows an operational cutaway of a BMW S1000RR — a 193HP superbike — bumping against its 14,200RPM redline. A cam and valvetrain at 118 cycles per second is an amazing sight (and sound). (H/T to Chris!)


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m2m, apex detective

And this is what you get when you put this thing on spiked rubber. On a frozen lake.

Scary. Somehow attractive, too.