【探讨】轮胎宽度，负重及前后搭配

沙发.....

看过不少台湾车友确实是前窄后宽，他们说宽胎承重大经得压。这几个车友有一点胖。

本人郑重宣布，若您的体重+其它载荷不超过105公斤，而又想在运动中节省体力的话：前宽后窄是正确的选择！

在单车最大承重中，应采用木桶短板原则。可能因素有：
轮圈
辐条
外胎
内胎
车架
花鼓

在运动单车中，应该是轮圈和辐条为最短板。不知道乳鸽能否确认下～～

105公斤，很多人都达不到吧？ 会不会是105斤啊？？

为什么工厂怎么不这样儿设计呢?好像都是宽度一样儿的啊.

前后1.5就够了，一年才滑一次前轮，而且都没摔跤。

Mixing/Matching Tires
Most bikes come with identical tires front and rear. This is all right for general use, but if you want to optimize your bike, you should consider using different tires front and rear. The front and rear tires have different loadings and different requirements.
多数单车前后轮胎是相同的。对于普通用途这是很好的，如果你企图最优配置时，就应当前后不同的轮胎。

Narrower Front, Wider Rear
If lightness is the primary goal, tire width/weight is limited by the risk of pinch cut flats, a.k.a. "snake bites." Since there is more weight carried on the rear tire, you can get away with a slightly narrower tire in front than you can in back.
前窄后宽
若轻量化是基本目标，轮胎宽度/质量会由pinch cut flates限定。既然后轮承载了更多载荷，你当然可以缩窄前轮并声调多余的重量。

Wider Front, Narrower Rear
A wider front tire makes sense in many applications, however, when handling and ride comfort are considered. A wider tire will generally provide better cornering traction than a narrower one, assuming appropriate inflation pressure.
A wider tire also provides superior shock absorbency. I personally prefer a slightly wider tire in front, since I suffer from some wrist discomfort on occasion.
前宽后窄
相对宽度前轮在很多时候都更有意义，但是骑行舒适性却在之外。宽轮会有更好的转向控制力，在胎压合适的情况下。宽轮同样提供优良减震性，笔者个人更愿意前面宽轮，因为有时手腕容易发麻之类的不适。

Off-Road Issues
Bikes that are used some of the time on loose surfaces often benefit from a wider front tire, with a fairly agressive tread, coupled with a somewhat narrower, smoother rear tire.
The wide, knobby front tire will provide the all-important front wheel traction. If your front tire skids, it almost always leads to a crash. For riding in soft conditions, such as sand or mud, a wide front tire is essential. If the front tire sinks in and gets bogged down, you're stuck. If the front tire rolls through a soft patch OK, you can generally power the rear through to follow it.
非公路情况
前宽轮有更好的通过性，尤其在沙石，松土情况

The narrower, smoother rear tire will have lower rolling resistance. Since most of the weight is carried by the rear tire, rolling resistance is more important on the rear than the front. If the rear tire slips, in most cases the worst that will happen is that you'll have to get off and walk.
窄轮有更低的滚动阻力。既然大部分重量落在后轮，后面的配置更有力。

This is a great idea that developed out of BMX racing.
这些经验是从BMX比赛中得出的

Some mountain bike tires come in matched sets, with diffrerent tread front/rear. The front tires tend to have the knobs set up more or less parallel to the direction of travel, for improved lateral grip and better steering control. The rears tend to have transverse knobs for driving/braking traction.
山地车的轮胎越比赛相适应， 前后轮不同。前轮有与前进方向不偏斜的突起，以获得更好的侧向抓地或转向控制。后轮趋向于横向【跟前进方向垂直】突起，以获得更好的驱动或刹车力。

综上所述，没有提到最大载荷的问题。
前窄后宽，是为了整车轻量话，最高速度，即公路化方向发展。
前宽后窄，是为了在不牺牲控制的前提下尽可能省力，即山地公路综合化。

当然，若您的总负重太超常规了【我依然没有计算的量化指标】，不在讨论范围之列

前宽后窄，前宽是多少合适？2.1/2.2----

后窄呢，1.95、2.1？

我确实想试下前宽后窄，准备换山地胎了。

还有就是如果喜欢去樟木头林场玩越野的话，换什么型号的外胎合适呢？

看了很多评价，暂时没找到一个真正众口皆杯的好外胎。

于是想换松下的山地胎，因为我正在用松下的光头胎，真的不错，耐磨，耐扎，抓地力还很好。

还有个选择就是建大的NEVEGAL，好像这个型号有分前后胎的，不知道是否也得选择前宽后窄呢。

Types of Flats
When your tire goes flat, it means that there is a hole in the inner tube. There may or may not be anything wrong with the tire itself.
Flat tires can be divided into four groups:
轮胎瘪的类别【这个真难翻译】

Slow leaks take long enough to go flat that the bicycle may actually be ridden, but the tire will need to be pumped up more often than it should. It is normal for a tube to lose air over a period of weeks. If you put your bike away for the winter and come back in the spring, the tires will likely be soft or flat, but this doesn't necessarily mean that there is anything wrong with them, they may just need to pump them up.
If you use high-pressure tires, you should check the pressure at least once per week.
Slow leaks that take more than an hour or so to go down can often only be repaired by replacing the inner tube, since it may be impossible to find the hole.
慢漏气

Punctures are caused by running over sharp things which poke a hole through the tire and into the tube. Punctures may be caused by glass slivers, thorns, nails, bits of wire or other small sharp objects.
The typical puncture puts a small hole in the tire, which doesn't matter. Patching or replacing the inner tube is the fix for punctures...but don't forget to remove the pointy thing from the tire before you put it back on!
扎胎

Pinch Cuts result from hitting stones, curbs, or sharp edges of holes in the road surface. When the tire hits a sharp edge hard enough, it compresses so that it bottoms out. The inner tube can get pinched between the rock and the rim. Pinch cuts usually put two small holes in the tube. This type of damage is sometimes called a "snake bite" because the two holes look like the wound made by the fangs of a snake.
Pinch cuts sometimes ruin tires as well as tubes, but usually the tire will not be damaged.
The impact that causes a pinch cut can also make a dent or "blip" in your rim.
蛇咬
这种胎瘪常常是碰到石头，路边石级，或有齐整边缘的坑洞。当轮胎碰到足够坚硬的尖锐边缘时，自身变形并是底部露出轮圈边缘。内胎会被硬物和轮圈边缘挤破。这种胎瘪通常在内胎上留两个小孔，象蛇咬人留两个口子一样。蛇咬有时也会在轮圈外缘留下小坑。有时会伤害外胎，有时不会。
【这是设计轮胎最大载重的依据，所以我翻译这一段】

Blow Outs
are sudden losses of air, usually accompanied by a loud BANG! Since the inner tube is just a rubber balloon, if you pump it up outside of a tire, it will stretch bigger and bigger the more air you put into it, until it pops. The inner tube will not take much pressure by itself, it needs to be held inside of a tire to get up to full pressure. If the tire doesn't hold the tube in all around, the tube will pop.
爆胎

想问下，DTC外胎是指一般的外胎么？

技术探讨的贴子。要顶！

DTC 是Dual Tread Compound沒錯。不過他是一種方法，而不是配方。主要就是胎面中間直騎時接地的部分橡膠用較硬較耐磨的配方，以增加速度跟直線穩定性。兩邊則以較柔軟配方增加轉彎的抓地力。這種一個胎面用兩種不同配方材料的方法就叫做DTC。

哇咔咔，学好外语真重要

正琢磨换胎呢，正好参考参考。

运动，游戏，沉思 。
沉思这么久，出来冒泡啦？
公路、CX、DS、FR、DH，还有大攀、小攀、BMX、平花，林林总总，能炒在一起来说的吗？
应先区分车型，再根据不同的轮径才来讨论轮宽和气压。

前宽后窄总觉得车怪怪的

感觉1.5不够爽，真想用公路车的车胎

弄得好负责 暗示菜鸟 刚入门 起长途 比如滇藏线 要什么样的比较好啊

好像还没见过用齿胎和光胎组合的车车！