How to choose a spoke wrench to true your bicycle wheels скачать в хорошем качестве

How to choose a spoke wrench to true your bicycle wheels

A spoke wrench or spoke key is a small wrench or tool used to adjust the tension in the bicycle spokes of a bike wheel or other type of wheel (truing a bicycle wheel). A spoke wrench is sometimes called a nipple wrench, as it is the spoke nipple - not the spoke - that is turned in the process of changing the spoke tension. The goal common to these activities is to bring the wheel (nearer) to a state of true — namely, a wheel in which the rim is 1) a perfect circle concentric with the axis of the axle in the hub, and 2) planar, such that the plane of the rim is centered laterally between the two extremes of the axle where it is supported in a frame. When we talk of spoke tightening or spoke loosening, we are turning the spoke nipple to true the wheel. What we have found is that spoke wrench is based on the spoke nipple manufacturer and not on the size (or spoke gauge) as noted in the link in the description above. If you try a spoke wrench that’s too small, it either won’t work or will be very difficult to get on. On the other hand, a spoke wrench that a little too large will round out the spoke nipple making it impossible to perform further adjustments. A spoke wrench should not be overly difficult to place on, but fit firmly, with little to NO PLAY or “wiggle” that might round out the spoke (i.e., you cannot turn the spoke wrench without it turning the spoke nipple). We verified the stated spoke nipple size with high end digital calipers in our shop. In this study we used the more widely used 14 gauge from the manufactures listed above including sapin, wheelsmith, and dt swiss. Our conclusions: 1. If you were to buy only one spoke wrench, the Park Tool Spoke wrench SW7 triple would give you the best spoke wrench for the buck. The Lenze spoke triple is an excellent tool, however it needs to be color coded and is a little hard to work with because of its small size. 2. For those individuals who are building and truing wheels more frequently, a combination of several tools may fit your bill, especially if you can’t identify the manufacturer of the spoke nipple. 3. I prefer brass spoke nipples which show less wear with truing over alloy spoke nipples. The weight difference is only 30 grams or ½ of cliff bar. Not all spoke nipples are listed and you may have to do some research to find the right one for your wheel. Remember, if you try a spoke wrench that’s too small, it either won’t work or will be very difficult to get on. On the other hand, a spoke wrench that a little too large will round out the spoke nipple making it impossible to perform further adjustments. A spoke wrench should not be overly difficult to place on, but fit firmly, with LITTLE PLAY (wiggle) that might round out the spoke (i.e., cannot turn the spoke wrench without it turning the spoke nipple). Certain spokes such as aero-spokes require an additional tool to hold the aero blade in place as you tighten the spokes. In our shop we know which spoke wrench to use on the wheels we built. On the other hand, we keep a box full of various spoke wrenches when someone brings in their own wheel to be trued.