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The kicksled or spark is a small sled consisting of a chair mounted on a pair of flexible metal runners which extend backward to about twice the chair's length. The sled is propelled by kicking ("sparke" or "sparka" in the Scandinavian languages) the ground by foot. There is a handlebar attached to the top of the chair back. "Kicksled" is a direct translation of the Finnish word "potkukelkka". Some other possible translations are "kicker" and "chair-sled". == Design == The typical adult sized sled has runners about long, spaced apart. The steel runner blades are about wide. The handlebars are about above ground. The kicksled is driven forward by the driver standing on one runner, kicking backwards on the ground with the other foot, hence the name. The flexibility of the runners allows the driver to steer the kicksled by twisting the handlebars. One can have a passenger or luggage on the chair seat. The kicksled can also be used as a dog sled. A kicksled is designed to be used on hard, slippery surfaces like ice or hardpacked snow. To kicksled in deeper, more powdery snow, extra-wide plastic snow runners are attached to the standard, thin runners of the sled. On very smooth, bare ice, the use of traction devices like spiked shoes or crampons improves kicking force. On level ground, one can easily reach a speed of to , and much faster on downhill section or with a strong tail wind. The kicksled is in common use in Norway, Sweden and Finland, especially where roads are not sanded or salted. It is also an excellent means of travelling over frozen lakes to go ice fishing or just to explore the lake. Kicksledding on lake ice shares many of the same features as tour skating. Some models also include a wheel kit allowing to transform the sled to a kind of walking aid for summer use. This type is especially popular amongst the elderly. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Kicksled」の詳細全文を読む スポンサード リンク
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