Seat Packs 座管包 We carry a few different flavors of seat packs but they are all perfect for carrying compressible items like sleeping bags, shelters, spare layers, etc. Most also have external shock cords or lash points for overflow storage. They vary in size, construction and water resistance. 我们推荐的一系列风格各异的座管包都是很利于装载可压缩的小比重物件,比如睡袋,帐篷或者露营袋或者吊床,保暖衣物(这里一般指轻便羽绒服或者羊毛衣)等等。大部分这些座管包都可以通过外部的橡皮筋和挂点来收放包体容积,同样也是由拒水材料来制作。
How do I choose a Seat Pack? I’m glad you asked! Seat packs are great because the fit is nearly universal, making them easy to move from bike to bike. There are a few limiting factors. The big one is tire clearance. If there isn’t enough space between your saddle rails and rear tire (a common problem on bikes with big wheels and small frames) the bag can bump and rub on the tire. You’d be amazed how fast you’ll wear a hole right through your bag and its contents in this situation! Give yourself some breathing room so that your bag will never contact the tire, even if overloaded or sagging. Riding full-suspension? Make sure you measure your clearance with the suspension fully compressed! 怎样选择座管包? 很高兴你提出这个问题!座管包是很棒的东西,因为它几乎不挑车架,具有广谱适应性。但是这里仍然有一些小小的限制,主要在于“轮座距”,也就是座轨距离后轮的空间,要是这个空间太小(特别是大轮径对应小架子*注),那么颠簸的时候,座管包很容易刮蹭后轮--而且磨损的速度会相当惊人。所以,留出足够的安全空间,即使座管包在过载的状态下,也绝不会刮蹭后轮。如果你是骑软尾车的话,要充分考虑后胆极度压缩状态下的“轮座距”。 The second consideration is the length of exposed seatpost. This is less critical and can be fudged a bit within reason. For example, Revelate recommends at least 5″ of exposed seatpost for their Viscacha. I only have about 4″ of exposed post on the bike pictured above and it still fits fine. If in doubt, stick to the maker’s recommendations. 第二个需要考虑的问题是座管的露出长度,这是个比较次要的问题,但是也可能会导致一点问题。举个例,Revelate的Viscachana那款座管包,就要求座管至少露出立管5英寸(12.7厘米),但是我的座管只有4英寸露出长度(见本楼图1),也能使用。如果自己不确定的话,尽可能服从厂家的推荐范围。
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