Park Tool BBT-22 Shimano Sealed Cartridge Bottom Bracket Tool Review

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(More customer reviews)Park Tool is widely regarded as the best bicycle-specific tool maker. This bottom bracket tool, essentially the socket end of a 1/2" drive socket wrench, makes it easy to see why. It's splined to fit Shimano sealed cartridge bottom brackets, just like a very similar socket I have from another manufacturer. The crucial differences are two: fit and contour. The tool snaps very precisely on to the bottom bracket, making easier work of a removal job that can be difficult due to overtightening or seized threads. Just as importantly, the top of the socket is contoured so that if the drive handle is providing insufficient leverage to do the job, one can fit a box end or open end wrench over the hex-shaped top of the socket. This makes possible the "desperation method," in which the socket must actually be bolted to the spindle of the bottom bracket and then turned a little at a time (often with much swearing, cheater pipes, etc). In the "seriously desperate" version of the desperation method, the tool can be bolted to the bottom bracket spindle and then clamped into a vice, with the entire frame being turned as a lever to move the seized threads. The shape of this tool makes that clamping possible.
If you have to do this, make sure to treat yourself to a beer or similar reward afterward. But with this tool, you can! If you're blessed not to need that method, this tool will work exactly as it should anyway, and for years to come.

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