Park Tool BBT-RS Bottom Bracket Tool Retaining System Jacket -Mammut's first climbing helmet with

-Mammut's first climbing helmet with MIPS technology

Heavy-duty 1/2" diameter construction

Max weight capacity 600 lb

• Vibram® Megagrip®

Park Tool BBT-RS Bottom Bracket Tool Retaining System Jacket -Mammut's first climbing helmet withBottom 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 BBT RS uses a spring based tension system to apply consistent,