Bicycle bottom bracket bearing press for Sram Dub
thingiverse
This tool is for removing pressed-in Sram Dub press-fit bottom brackets. It is similar to Park Tool BBT-90.3, except it is larger in diameter for Sram's 29mm axles. It will not work on Shimano bottom brackets, since these have 24mm axles. Being made of plastic, it absorbs part of the impact when you hit it with a mallet. If you're used to using the metal version of this tool, you'll find you have to hit this one harder. You need to print it strong as a result. I put the handle of a screwdriver in the opposite site to keep the tool spread open while pounding out the bearings.
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