Park Tool BBT-9 Bottom Bracket Tool 50mm check your pads for wear

check your pads for wear and replace them when necessary

This is a cost effective cleaner for your bike or bikes

Looking for an all round wonder spray

This version features an updated polymer formula to increase durability and comfort during long rides

Small and Easy to Use

Park Tool BBT-9 Bottom Bracket Tool 50mm check your pads for wearThe BBT 9 is used to remove and install external bearing crankset bottom brackets. One end of the BBT 9 securely engages the 16 notches of bottom bracket cups. The other end of the tool engages the 8 internal splines of the crank arm adjustment cap on Shimano Hollowtech II systems. The BBT 9 fits cups and lockrings with 16 external notches and an outside diameter of approximately 44mm.