off-road cycling, on Sedona's red rock cliffs. 越野自行車, 塞多納的紅色岩石峭壁

Michal Kollbek

Death-defying: Daredevil Michal Kollbek rides his bike across the famed White Line in Sedona, in Arizona's Red Rock State Park

Heart-pounding moment biker risks his life as he attempts horizontal traverse of the famed White Line trail on Sedona's red rock cliffs | Daily Mail Online
Read more: http://www.dailymail.co.uk/news/article-2994398/Heart-pounding-moment-biker-risks-life-attempts-horizontal-traverse-famed-White-Line-trail-Sedona-s-red-rock-cliffs.html#ixzz3USkJhxbU
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Sedona, Arizona - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Sedona,_Arizona
塞多納 (亞利桑那州) - 維基百科，自由的百科全書
http://zh.wikipedia.org/wiki/%E5%A1%9E%E5%A4%9A%E7%BA%B3_(%E4%BA%9A%E5%88%A9%E6%A1%91%E9%82%A3%E5%B7%9E)

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