Originally Posted by
Shimagnolo
The 4-sided wrench grips all 4 sides of the nipple and cannot slip off.
Sounds great in theory, but when I bought the one from Park, it was so annoying to get off/on the nipple, that I went back to using the 3-sided one.
Right.
With proper lubrication on the spoke threads and at the nipple/rim interface the normal 2-sided wrench won't cause problems unless you're making a damaged wheel rideable using your head light for illumination and neglect to fully seat the wrench on an alloy nipple which twists but remains functional. If that happens to you just replace the nipple when you replace the rim.