推荐回答(1个)
首先要自己了解基础的山地车知识,或者骑这个车主要走什么地形(地面),骑行是具体什么方式和要求,否则没法谈“性能”。因为”性能“涉及的方面很多,而且往往引人而异。
你需要整车很轻量化?(比如10公斤或以下,包括后期花大价钱升级高端轻量化配件,将原本12.8公斤降到9.2公斤)(轻量化的整车带来较好的输出效能、踩踏刚性、低体能消耗等等优点) 需要高输出效能?(比如同样齿比,同样体能,同样的90踏频 ,你能感觉比对手轻松一点或速度更快一点) 需要较高的踩踏刚性?(直白说好比在沙土地上和马路上跑步,前者的泄力明显,”刚性不好“,比如捷安特地板级ATX 6xx系列的踩踏刚性就明显不如XTC8xx系列的、但XTC SLR系列的则米XTC 8xx的好,更高一等的XTC ADV系列则比XTC SLR系列的刚性还要好一点) 需要保持较高的马路巡航速度?(比如时速28km对35km) 在越野骑行的颠簸中,需要更好的侧向稳定型?(比如要碾过前面的石头阵路,侧向稳定不好的车会让你感觉左右晃动比较难以控制)、需要灵敏的车头指向性?(比如要绕过前面的石头阵,侧向稳定不好的车会让你感觉转动车把躲开障碍时,车子的反应慢半拍)。 等等还有其它,比如过弯,压弯,急停甩尾时车子的表现。 从上述方面来说,XTC820表现并不好,毕竟是“XC性硬尾山地车的入门型号”。
具体举几个最常用的例子。压马路的巡航速度,即便XTC 8xx系列的(配置较高的)顶级型号(XTC880)都不及比比捷安特小不少的牌子——比如米赛尔的29寸型号(29寸轮组比竞速用的公路车的700c轮组即28寸吧还大一些)。 越野中操控的“人车一体感”(可理解为“眼有所看,身有所动,车有所应”),XTC 880都不如崔克的入门级马林5或7,虽然两者价位相当但崔克的变速套件等级低了好几等(但崔克的设计是继承于山地车创始人之一Gary fisher的“G2几何”并经专业大赛经验的改进,令马林这种低端XC型硬尾山地车的操控表现优于捷安特的中端XC型硬尾山地车(在业内,G2几何太知名了,崔克厂队多次夺得UCI的山地车XCO世界杯冠亚军的车型都是采用G2几何)。
可能以上所说,你会“一头雾水”。不过呢,消费水平到那个能花四千多的层次了,也需要一个从设计到用料到品管都很上路的大牌子的入门级XC型硬尾山地车来入门,XTC 820是很合适的(在业内,XTC 820数年间是被作为“XC型硬尾山地车”入门分水岭的标准产品)。 入手820之后,随着知识、经验的增加,会发现自己到低适合骑哪个品牌哪个等级的山地车(或许闪电的XXC型EPIC都满足不了你的需求;或许你为了系统化的健身而“脱坑”改去骑公路车了)。
随后小科普一下,gary fisher。山地车的鼻祖。上过《discovery》的人物,业内称“山地车三教父之一”。 Gary Fisher在Repack庆祝夺冠胜利,1976年 。



“klunker bike”,自行车两百多年历史上首辆“山地车”。Gary fisher设计。也是usa国家博物馆收藏物之一。所以说,一部山地车的“性能”应该怎样定义?

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