The ten worst Colorado bike collisions of 2012

7. Both cyclist and driver cited in Boulder crash

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Screenshot of the intersection.

In a November bike-vehicle crash in Boulder, both parties stayed on the scene. And both were cited by law enforcement officials. In this case, the cyclist, who was badly injured, turned into a crosswalk, but did not activate the flashing LED crosswalk signal. He then passed in front of a stopped Chevy van, but a Chrysler passed by that van and entered the crosswalk at full speed. The cyclist was struck, rolled onto the hood of the car and hit the windshield -- and then was reportedly carried 82 feet. The cyclist was issued a summons for "Pedestrian Disregarded Traffic Control Signal," and the driver was issued a summons for "Careless Driving Caused Bodily Injury."

6. The knife-wielding cyclist

Mugshot of Taylor Rose, 21.

There was no actual crash in this incident -- but this bizarre case did involve a cultural collision of booze, a methadone clinic and a knife. On a Tuesday morning in September, Taylor Rose, 21, was riding his bike in Boulder and allegedly swerved in front of a truck driver, just barely missing him. The driver asked, "What the fuck's wrong with you?" Rose, who apparently reeked of alcohol, replied, "What the fuck's wrong with you?" But the fracas did not stop with routine road cussing. Instead, Rose reportedly leaned close to the driver, let out a yell, then stepped back and pulled a knife from his pants pocket, waving at the driver. The cyclist then rode off to a methadone clinic, and was subsequently arrested for felony menacing and riding under the influence.

5. South Platte Trail trap
While there's a lot of tension on the road between cyclists and drivers, the bike-only trails of Denver are not entirely safe from bizarre rage against cyclists. In October, a barbed wire trap on a trail in South Platte Park threw a woman off her bike in a mishap that left her injured and damaged her bike. Given that there were lots of cyclists out on this Sunday, it is likely that the trap was put in place pretty shortly before she hit the wire. If the path had been more crowded at the time, the situation could have been a lot worse.

Continue for more of the worst bike crashes of 2012.