15条提升无胆战斗力的方法—转自mba，单车网allanwalker汇总
上海朋友有时间可以自己翻译以下，有不理解的词汇，或者概念，可以问我，大家一起交流compiled by
Ed Arnett
1--DAVE'SWHEELS: On tubeless tires that are stubborn to inflate, first removethe presta valve core. When it's out the air chuck engages without apresta adapter. This allows much more compressed air to escape into thetire. After the tire inflates, remove the air chuck and use a finger toquickly plug the open hole in the valve stem. Lift the finger andimmediately thread in the valve core. It's easy to do without losingall the air inside the tire; all it takes is a pound or so for thebeads to stay put. Then add air to the desired tire pressure.
对付难打气的轮胎的时候，先去掉气门内芯，这样更容易打入更多压缩空气，当轮胎基本被打起来之后，移开气泵，手指堵住气眼，然后快速挪开手指，旋上阀门，最后，调整到合适的气压，并不是很麻烦
2--DAVE'SWHEELS: Most current tubeless valve stems use a removable valve core.If your's doesn't, Stan at NoTubes will. They offer tubeless valvestems with removable valve cores to fit every UST andconverted-to-tubeless rim application.
如果你的无胆气嘴没有可以拆卸的内芯，找NOTUBES的STAN。他们会提供给你这样的产品。
3--DAVE'S WHEELS: Cut alength of drinking straw and slip it over the presta valve and hold itin place with a valve cap. This will keep the threads from gettingbuggered up. If you have a catastrophic tire failure, it will bepossible to easily remove the nut and the valve stem or rim strip. Findsomething to boot the tire with, use a spare tube and ride home!
4.--DAVE'SWHEELS: The way we check to see if the Stan's is drying up is to removethe presta core. Then use an old spoke as a dip stick. If the fluidlevel is below half the length of the threads (3/16"), use Stan'sinjector to add an ounce more sealant.
5--STAN'S NOTUBES:Always use soap and water or a tire lubricant when inflating convertedor UST tires tubeless. This will allow the tire and rim to interface,and for most leaks at the bead to stop within seconds.
6--STAN'SNOTUBES: When running tubeless, lower pressures are not just faster.They are also cheaper! Lower pressures increase tire life up to 300%.
7--STAN'SNOTUBES: Never exceed 40 psi when inflating a standard tire tubeless oryou run the risk of stretching the tire off the rim. Plus the highpressure expands the casing and creates more holes for the sealant toclose. If the beads are soaped the will seat at a much lower pressure.Only use enough pressure to seat the bead so it sits consistentlyaround the rim edge. Then check for leaks that need sealing.
8--STAN'SNOTUBES: The ZTR Race 7000 Series cross-country rim stabilizes tires aswell as most 30mm wide downhill rims. It's due to the extremely shortsidewalls and wide internal width. They stabilize tires better thanother rims of the same outside width due to the short sidewalls andwider internal width. This means you can run lower pressures withoutgetting excessive tire side roll during high speed turns.
9--STAN'SNOTUBES: Tubeless racing air pressures for a pro elite rider weighing165 pounds and running the tire-volume-expanding ZTR Race 7000 Serieswheelset with a large air volume 2.0 tire is 18 to 20 psi in the frontand 22 to 24 psi in the rear.
10--STAN'S NOTUBES: To classifyas a large air volume tire the casing width needs to be a full 2.0inches wide. Usually the casing width is the same as the tread width.With maximum air volume the tire can be run tubeless and at a lowerpressure without reducing stability.
11--STAN'S NOTUBES: Wetalk with so many racers that still tell us they must run 45-55 psi inorder to keep up with the pro's. But if I went up to a pro and told himthat he must race with 45 to 55 psi he would refuse to ride. Pro ridersunderstand they cannot win using such high of a tire pressure. There isno bump forgiveness, no control; loss of handling stability, and a bigreduction in speed over bumpy ground when running pressures over 25psi. If you insist, then why not just go back to racing a full rigidbike?
11。我们同很多业余选手谈过，他们表示，必须把气压打到45-55才能跟上职业选手。但是，如果我告诉一个职业选手，他们必须把气压打到45-55，他 们肯定会罢骑的。职业选手明白他们不可能在这么高气压下获得胜利。高于25的气压，没有了轮胎吸震，没有了控制能力，没有了操控性，同时，在颠簸路段会大量减慢速度，还比什么赛，还不如回去继续骑没有避震器的全硬车
12--STAN'S NOTUBES: All tires tested at 45 psi thenlowered to 25 psi ran 1/2 mph faster at the lower pressures. How do weknow? On our tire testing machine we have two 3/4 inch high bumps. Whentesting a tire at 45 psi then lowering the pressure to 25 psi the lowerpressure allows the machine to spin 1/2 mph faster. This is due to thetire at higher pressures bouncing upwards and backwards when hittingthe bumps. The lower pressure allows the tire to conform to the bumpreducing some of the speed-robbing rebound we see at higher pressures.
几乎所有轮胎在25PSI的时候都比45的时候快0.5英里/小时。我们怎么知道的？我们的测试仪有两个3/4英寸高的模拟障碍。在25的时候，他转动得 比45的时候快0.5英里/小时。这是因为高气压的轮胎在遇到障碍的时候向骑行的反方向会谈，同时跳起。而低气压的轮胎能够吸收振动，减少向后的回弹，同时减少轮胎腾空离地的时间。提高效率
13--STAN'SNOTUBES: After switching from tubes to NoTubes; subsequently being ableto run low tire pressure, riders in a 2 hour sprint test race took 7minutes or more off their times.
在从有胆换无胆之后，就可以使用更低的气压，2个小时的骑行可以减少7分钟的时间
14--STAN'S NOTUBES: The ZTR355 29'er wheel is one of the best kept secrets for cyclecross racing.It has a sidewall that is 1/8 inch shorter than other rims, an extrawide 3/4 inch inner width, and an incredibly light weight of 14 ounces.This cross-country rim gives a huge performance advantage over narrowroad rims. It means the ability to run a lower tire pressure withoutgetting excessive side roll during high speed turning. The lowerpressures adds to the suspension, traction and flotation in sandyareas. With The incredibly light The Crow 29'er tire, performanceexceeds 700c cyclocross tubulars.
15--WTB: The drop channel ofthe WTB LaserDisc rim keeps the NoTubes rim strip from finiding acomfortable fit. WTB sells special, 11 millimeter rubber strips thatfit perfectly under the NoTubes strip on LaserDisc series rims. Or tryVelox cloth spoke tape under the NoTubes strip. Before mounting thetire make sure that the NoTube's rim strip doesn't interfere with thetire’s bead seat. ms上海朋友对无胆系统不感兴趣？ 11。我们同很多业余选手谈过，他们表示，必须把气压打到45-55才能跟上职业选手。但是，如果我告诉一个职业选手，他们必须把气压打到45-55，他 们肯定会罢骑的。职业选手明白他们不可能在这么高气压下获得胜利。高于25的气压，没有了轮胎吸震，没有了控制能力，没有了操控性，同时，在颠簸路段会大量减慢速度，还比什么赛，还不如回去继续骑没有避震器的全硬车
这是什么气压？山地的也不会打这么低的气压吧
[ 本帖最后由 小白 于 2008-9-19 12:02 编辑 ] 25PSI. 什么情况? 呵呵，很难接受的理念 攀爬我理解，平花我也能理解，山地的话我就不理解了 有机会到南京，楼上的用我的enduro试试看，呵呵 希望有空去时去试试了，本人车胎胎压一直没下过五十 我们以前打气也是，比谁的硬，到捏不动为止，呵呵
后来，大概是在05年南京植物园一战吧，把气压控制到28（硬架）
感觉十分良好，后来就比较注意气压的问题了
也认真研究了一下国外的资料，还是有一定证据，但是，路面不同，也很难说
至少上海的情况，50还是最快的，呵呵
而南京，植物园那种路面，25左右，反倒很快（草地，土路，林道，小碎石）
所有胎纹可以接触地面
还有一些其他优点。 当然，缺点是 ，到平路上，要费点力气。
所以，我说的是，山地路段
上海没有太多的山地条件，要是条件好的话，定期组织苏州山地赛道，哈哈
或者其他，杭州什么的，山地comp 公路的飘过~
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