观看免费视频 Sharing the Road
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You may not know this, but if a cyclist can't see around a corner or over a hill on a road, they are allowed to take the lane to keep a driver from passing. Passing in that situation is extremely dangerous, as you can see here. Please be patient, and only pass when you can see what's coming the other way.
Visit bicyclesafe.com for more ways to practice safe cycling.