Park BBT-32 Bottom Bracket Tool for installing or removing ISIS drive and Shimano bottom brackets.
In the BMX world, this is going to be for a frame that takes a European bottom bracket. This is the same tool for road and mountain bikes with a 20 tooth interface, but not necessarily European (could also be an Italian bottom bracket or others).
20 teeth and approx. 31.5mm in diameter. Wrench flats are for a 32mm wrench (or just use a big adjustable wrench).
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