Review on Park Tool Bicycle Spoke Wrench: Ideal for Square Nipples by Bryan Turner

I used to work in a bike shop and used them every day. They are "one size fits all" but this is the best tool I've found. I've never seen one break, and in my short college career I've used several that have proven effective over the years. Yes, there are nipples with different sized needles, but that goes for most things. Try to use the same Allen key for each bolt on the bike. Try to use the same socket wrench or combination wrench for all bolts on the bike. Hell, in my career there have sometimes been differences between one model year and another, and yes, between one bike and another. Sometimes it's a strange world. If you get stuck, go to your local bike shop and ask, or get a wheel and show them, or if you know someone with a micrometer or caliper they can measure the nipples and tell you. Worst case, order the three most common sizes (blue is not common, except for expensive bikes) and return the ones that don't fit. just be careful You *can* spin "taco" if you're not careful. If a wheel has been flipped or is off by more than a fraction of an inch, chances are you and Superman won't be able to "fix" it. Pulling the nipples through the rim is a showstopper.