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A mega ramp, or megaramp, is the informal name given to ''any'' large-format vert ramp structure, often used in skateboarding and freestyle BMX. The name distinguishes a second generation of ramps which became increasingly popular during the 1990s-2000s transition years. They are so called to distinguish them from the more modest classic ramps used throughout the preceding decades of these sports and which were, at most, half-scale versions of these newer and larger ramps. ''MegaRamp'' is also the name of a mega ramp event organization and promotion company. ==Structure== Contemporary structures are generally constructed of metal scaffold with a wood surface topped with Skatelite, and consist of two or three sections. The most common ramp setup, used as well by MegaRamp, is a sequence of three mega ramp sections; a roll-in, a gap jump, and a vert quarter pipe. Vert half-pipe mega ramps have been built in the past, but they are uncommon. The roll-in section consists of a single or multiple roll-ins that drop from 12m (40') or higher up. The purpose of the roll-in is for the athletes to be able to gain the speed needed to tackle the other sections of the ramp. The tallest Mega Ramp to date is 59.1m (197') tall. It is located in professional skateboarder Bob Burnquist's backyard. The second section can be a gap jump, or a quarter pipe, though the gap jump option has become the most popular setup. Gap jumps range in distance from 7.5m (25') to 21m (70') between the launch and landing sections. The athletes clear the distance between the launch and landing sections of the gap jump by sailing through the air above the gap, and land on the landing section, which is sloped forward to decrease the landing impact. The third section is almost invariably a quarter pipe. The quarter pipes can be 5.4m (18') or greater in height and serve as either a speed brake, or as another launch point from which the athlete sails directly vertical into the air off the top lip of the ramp, before falling back down and landing on the quarter pipe transition again. Other additions and modifications have been tried on mega ramps, such as the tall flatbox with a rainbow rail that was added to the Point X mega ramp. The total length of these structures varies from approximately 60m (200') to 108m (360') in length. 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「Mega Ramp」の詳細全文を読む スポンサード リンク
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