Park Tool Bottom Bracket Retaining System Tool (BBT-RS) product-type_chain-locks FeaturesBottom bracket with small ball

FeaturesBottom bracket with small ball bearings for lightweight package

Using only the highest grades of raw materials

Simply Fast

About Park Tool Hex Precision Driver 2

It’s also fully biodegradable* and safe for metal

Park Tool Bottom Bracket Retaining System Tool (BBT-RS) product-type_chain-locks FeaturesBottom bracket with small ballAbout Park Tool Bottom Bracket Retaining System Tool (BBT RS) Bottom brackets have some of the highest torque specs of any component found on a bicycle. Despite this, some bottom bracket cups feature tool fittings that allow mere millimeters of engagement, which can be a problem when attempting removal or installation. Solution: the Park Tool Bottom Bracket Tool Retaining System. Used in conjunction with nearly any Park Tool bottom bracket tool, the